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Posted: 12/20/2010 8:59:25 AM EDT
[Last Edit: RTUtah]
Originally Posted By PSYWAR1-0:

The Recce platform was something that sprung up within the NSW and 5th SFG communities that first became the Special Purpose Receiver built by Crane, which was supposed to be installed on any M4 lower. After a time when the perfect storm of the users wanting a match-grade trigger and the bolt-bounce issue was identified, the Special Purpose Receiver morphed into a complete rifle that was type-classified as the Mk12.

Mk12: A BRIEF HISTORY (as authored by "LGT" & "FL")

Mk12 Special Purpose Rifle (SPR)

Scoped versions of the M16 rifle existed as far back as the 1960s. Like nearly all historic military rifles, the M16 went through decades of efforts to improve its accuracy, both in the military and civilian marksmanship communities.

The need for the SPR dates back to the late 1980s and early 1990s when the 7.62mm M21 sniper rifle, a semi-automatic weapon of Vietnam vintage, was replaced by the M24 sniper rifle, a bolt action weapon. The M24 was originally specified to be a .300 Winchester Magnum, but the Army decided to field it in 7.62 NATO for a variety of economic reasons. This left the M24 in the unenviable position of being the worst of both worlds in the eyes of snipers at the time, since it lost the fast-shooing, semiautomatic capability of the M21, but did not gain the range advantage of the .300WM. This compromise left a vacant requirement for a fast-shooting semi-automatic sniper rifle. This need was most apparent in the US Army Special Forces (SF) community, since the other commands within the Special Operations Forces structure filled that need with Knights Armament Corporation's SR-25 sniper rifle.

Army SF, being prohibited by its leadership from procuring the SR-25, sought the next best alternative, namely a Special Purpose Receiver (SPR) kit to convert the Army SF M4 carbines into highly accurate rifles. In late 1998, at the request of SFC Steve Holland of 5th Special Forces Group, and the approval of the SOPMOD joint IPT, the Special Operations Peculiar Modifications (SOPMOD) Program Manager, Troy Smith, authorized the purchase of 5 sets of commercial items as an SPR experiment.

The original requirement was for USASOC, mainly the SF Groups, as WARCOM had the MK11, 7.62mm system. Once the SPR requirement was developed and demonstrated through experimentation, most of the other commands in USSOCOM added themselves to the Basis of Issue Plan (BOIP). The USSOCOM requirement for the SPR, with improved ammunition, was approved in July 1999, as part of the SOPMOD Kit, Operational Requirements Document, Version 5 (ORD 5).

Further initial development included several variants of the SPR and new ammunition that were compatible with the M4 carbine's lower receiver. It was found that standard issue M855 5.56mm ammunition was not consistent enough to meet the requirement. In 2000, based on an upgrade requirement to provide a match-grade trigger to the design, Mr. Paul Miller, the SPR project manager, discovered an opportunity to pick through over 15,000 M16A1s that had been sent to Crane for destruction. Realizing that these M16A1 rifles, some of which were virtually new, could be used as "free lumber" to build full SPR weapons, Paul selected several thousand rifles to be set aside for the new SPR project. The SPR underwent a minor but significant name change, with the R having originally stood for "Receiver" now standing for "Rifle"

The new weapon system was worthless without a matching round of ammunition to obtain the performance required. The PEO-SP USSOCOM authorized the new round that became Mk262 as part of the Mk12 system in August 2000. Paul Miller and his SPR team refined the 77-grain prototype ammunition and built approximately 124 SPR Rifles in the summer of 2001. These were finished just in time to ship out to Army SF in late October 2001, to be used in the first invasion of Afghanistan. The SPR rifles were extremely well-received, and the SOF combat units ordered hundreds more.

In May 2002, USSOCOM removed the Mk12 and other complete weapons projects from the SOPMOD Program and placed them under the newly-formed USSOCOM Weapons Program. The fielded weapons included two versions (Mk12 Special Purpose Rifle Mod0 and Mod1). Fielding has since been structured for Mk12 Mod1 Special Purpose Rifle only. This rifle is used by Joint USSOCOM Commands and the USMC in combination with M262 (AA53, 77 grain) ammunition. Formal fielding of the full-rate production version of the Mk12 rifle and ammunition occurred in May 2003 and was completed in FY '04.

In 2012, as the decade of war on terrorism was winding down and the SCAR weapon system began replacing the requirement for the Mk12, USSOCOM and Naval Special Warfare divested themselves of the Mk12 weapons system, and the Mk12 is now being looked at to fill a Designated Marksman Role within Brown Water Navy commands.
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* * * * * * * * * *

The following parts lists and substitution parts was compiled by lancecriminal86 over the course of a LOT of research. Read up and pay attention!

Below are the 100% .mil-spec parts lists to build a true SPR or Mk12 clone. Some of these parts are no longer manufactured and will require much effort and money to locate through forums and online brokers. Keep in mind the rifles were built off donor M16A1s, hence the prevalent A1 parts in the lower receivers and the BCGs. They were also first configured using parts available from 1998-2004, and most are inferior in some ways to newer designs. If this bothers you too much, STOP NOW.

The rifles were issued as a kit in a Pelican 1700 case with cutouts. The kits included the rifle with suppressor, optic, bipod, an Eagle TAS-1 UMSS sling (unobtanium and also absolute crap), with a Dewey 1-piece cleaning rod plus Otis cleaning kit, and a cutout for magazines. An operator's manual was also included, however these have not been officially released for public consumption. However, the manuals are out there, and some companies building Mk12 uppers include one. Whether these are official .mil operator's manuals or specially made is currently unclear as the manual itself still contains language that it is not for distribution.

- Alternate .mil-spec parts due to NFA, NLA parts, or changes in name/markings for current production in [brackets]

- Extra notes about parts or availability are in (parenthesis)

LOWER
Lower receivers were standard across the SPR/Mk12 variants and the only variations would be between grips, stocks, and buffers. Most were marked either Colt or GM Hydramatic. All other parts were the same in regards to the lower parts. One caveat is the trigger, as the program originally selected the Knight's Armament 2-stage Full Auto Match trigger. Later on, some issues regarding negligent discharges occurred, and Geissele SSF triggers ultimately found their way into the Mk12 family. Whether 100% of all Mk12s eventually received the Geissele trigger isn't clear, so either is acceptable.
  • Lower: M16A1 pattern [Nodak Spud NDSA1 or 80% re-profiled/finished/engraved]
  • Trigger: Knight's 2-Stage Full Auto Match Trigger or Geissele SSF [KAC semi-auto Match or Geissele SSA/SSA-E]
  • Grip: A1, A2, ERGO Original
  • Stock: Originally issued with A1 stocks, both solid D and trapdoor E types; as A1 stocks dwindled, A2 were used; ModH rifles rebuilt with Ace SOCOM stocks
  • Small parts: Standard M16A1 parts

UPPER
The upper receivers, which ultimately differentiate the four variants of the Mk12, have the most variation between each other.


Early SPR/Mod0
  • Upper: Colt, Diemaco, or Armalite marked, flat top, M4 feed-ramps
  • Barrel: Douglas 416r SS, 18" SPR contour, 1/7 twist, flats milled for PRi FSB (Compass Lake, Centurion Arms, High Caliber Sales, and PRi can all supply barrels that meet the appropriate spec minus FSB flats)
  • BCG: Colt M-16
  • Handguard: Precision Reflex Gen I carbon fiber free-float Handguard, rifle length (identified by button-head screws and one vent hole near barrel nut on lower half; no heat shields)
  • A.R.M.S. #38 SPR MOD Sleeve (either the PEQ version or with uneven spacing on the front  but not the full 1913 railed version)
  • FSB: PRi early folding front sight base and gas manifold, set-screw, with elevation wheel
  • Charging handle: PRi Gas Buster M-84 with military latch
  • Muzzle device: OPS Inc 12th Model brake/collar, and 12th Model suppressor [Allen Engineering AEM5 and brake/collar]
  • Rear iron sight: A.R.M.S. #40
  • Scope rings: A.R.M.S. #22 Medium rings, #22 Tactical Ring Cap and #22 Tactical Ring Rail (rings should not include "lever-stop" hump as produced later by A.R.M.S.)
  • Optic: Leupold Vari-X III 3.5-10x40mm LR, M3 turrets, illuminated Mil-Dot reticle (use .308 turret) [Leupold LR/T 3.5-10x40 LR, M3 turrets, Illuminated Mil-Dot reticle]
  • Bipod: Versa-Pod with A.R.M.S. #42, or a Harris with A.R.M.S. #32 (Versa-Pod far inferior to Harris)
Late Mod0
  • Upper: Colt or Diemaco marked, flat top, M4 feed-ramps
  • Barrel: Douglas 416r SS, 18" SPR contour, 1/7 twist, flats milled for PRi FSB (Compass Lake, Centurion Arms, High Caliber Sales, and PRi can all supply barrels that meet the appropriate spec minus FSB flats)
  • BCG: Colt M-16.
  • Handguard: Precision Reflex Gen III carbon fiber free-float handguard, rifle length
  • A.R.M.S. #38 SPR-PEQ-2-3 Sleeve
  • FSB: PRi folding FSB, set-screw, .750 (original production had PRi's full address engraved on sight tower; those engraved with "PRi USA" are later manufacture)
  • Charging handle: PRi Gas Buster M-84 with military latch
  • Muzzle device: OPS Inc. 12th Model brake/collar, and 12th Model suppressor [Allen Engineering AEM5 and brake/collar]
  • Rear iron sight: A.R.M.S. #40
  • Scope Rings: A.R.M.S. #22 Medium rings (rings should not include "lever-stop" hump as produced later by A.R.M.S.)
  • Optic: Leupold 3-9x36mm TS-30, Mk4 MR/T 2.5-8x36mm TS-30A2, M2 turrets with Mk262 BDC, illuminated TMR reticle
  • Bipod: Harris with either A.R.M.S. #32 or KAC RAS bipod adapter
SPR/A, SPR/B, Mod1
  • Upper: Colt or Diemaco marked, flat top, M4 feed-ramps
  • Barrel: Douglas 416r SS, 18" SPR contour, 1/7 twist, flats milled for PRi FSB (Compass Lake, Centurion Arms, High Caliber Sales, and PRi can all supply barrels that meet the appropriate spec minus FSB flats)
  • BCG: Colt M-16
  • Handguard: Knight's Armament M4 Match FF RAS, rifle length (now called the SR15/16 Match FF RAS)
  • Gas block: NSWC Crane pattern (Badger Ordnance parkerized/NSN version is correct, has open front of gas tube hole)
  • Charging handle: PRi Gas Buster M-84 with military latch
  • Muzzle device: OPS Inc. 12th Model brake/collar, and 12th Model suppressor [Allen Engineering AEM5 and brake/collar]
  • Scope rings: A.R.M.S. #22 High rings (A.R.M.S. rings should not include "lever-stop" hump as produced later by A.R.M.S.)
  • Optic: Leupold Mk4 MR/T 2.5-8x36mm TS-30A2, M2 turrets with Mk262 BDC, illuminated TMR reticle or NightForce 2.5-10x24 (optionally with NightForce rings)
  • Bipod: Harris with KAC RAS bipod adapter (BRM-S, A.R.M.S. #32 could still optionally be used)

ModH, Mod "Holland"

  • Upper: Colt or Diemaco marked, flat top, M4 feed-ramps
  • Barrel: Noveske 16" Recon, mid-length gas system, profiled for OPS Inc. 12th Model brake/collar (will require aftermarket contouring of most barrels)
  • BCG: Colt M-16
  • Handguard: Precision Reflex Gen III carbon fiber free-float handguard, FDE, rifle length
  • Charging handle: PRi Gas Buster M-84 with military latch
  • Muzzle Device: OPS. Inc. 12th Model brake/collar, and 12th Model suppressor [Allen Engineering AEM5 and brake/collar]
  • Scope Rings: A.R.M.S. #22 Medium rings on PRi recce rail (rings should not include "lever-stop" hump as produced later by A.R.M.S.) or LaRue LT-104 SPR mount
  • Optic: Leupold 3-9x36mm TS-30, Mk4 MR/T 2.5-8x36mm TS-30A2, M2 turrets with Mk262 BDC, illuminated TMR reticle, Leupold Vari-X III 3.5-10x40mm LR, M3 turrets, illuminated Mil-Dot reticle (use .308 turret) [Leupold LR/T 3.5-10x40mm LR, M3 turrets, illuminated Mil-Dot reticle]; S&B Short-Dot
  • Bipod: Harris with either A.R.M.S. #32 or KAC RAS bipod adapter
  • Iron sights: (apparently PRI were supplied but never used)

In the Wild
Naturally, once these rifles were issued to units, operators and even Marines used various non-issued parts. Here is a short summary of what has been seen:

Early SPR/Mod0:
Both Leupold 3.5-10x40mm and 3-9x36mm scopes have been used. Many have had carbine stocks like the old CAR-style, enhanced M4, SOPMOD Gen I, or even the Tactical DuoStock swapped on.

Mod1:
One 3rd SFG-issued rifle pictured with SSgt Robert J. Miller (MoH recipient) used an A.R.M.S #36 S-EX 5.56mm rail, and a Leupold M3X 10x fixed-power scope, possibly pulled from an M-24 or SR-25 rifle. Another has been seen with a Magpul PRS, LaRue mount, and a Premier Reticles 3-15x used by an AMU shooter, and a similar rifle was pictured on a FOB in a very posed-looking photo. Further, a USMC-issued Mod1 was seen using #22 Medium rings instead of High rings, and a LaRue mount has been spotted as well. Grips have varied from the usual A1, A2, and ERGO, and at least one Magpul MIAD has been used. As with the Mod0s, carbine stocks like the SOPMOD and M4 have been used on Mod1s.

ModH:
The Mod "Holland" was already a small-batch configuration, but even as soon as they were issued to 5th SFG units, some Ace SOCOM stocks were replaced with Magpul ACS and CTR stocks. Optics are basically anything existing in the unit's inventory, from S&B ShortDots still in the system, the 3-9x and 3.5-10x Leupold scopes from earlier Mod0s, and there's even a photo of an ELCAN on a Mod1 floating around. No non-magnified optics like EOTechs or regular Aimpoint M2/M4s, but Micros have been seen on offset mounts. Backup iron sights, as a whole, were almost entirely left unmounted. Grips were again the same usual selection.

Parts Alternatives for Clone Building
Many parts are rare, expensive, and/or both. Despite this, there are some alternatives to a 100% pure clone that will still provide the same visual look and performance. While not a museum-grade clone, most would be hard-pressed to discern the difference. Just know there are those of us out there that will haze and peer-pressure you into further moving your build towards a true clone.

Barrel:
Popular options are the White Oak Armament SPR barrel (rifle gas), BCM's SPR barrel, Rainier's Match and Ultramatch offerings (ensure it's the SPR contour with 12th Model profile), Ballistic Advantage's SPR barrel. Compass Lake Engineering can also spin a Mk12 profiled barrel with a Criterion chrome-lined blank, or even a Krieger, which was one of the original contenders for the program. The DPMS Mk12 barrels are NOT properly profiled for a clone.

Optics & Rings:
In the case of the Leupold 3-9x or 3.5-10x, it's generally okay to go for a non-illuminated version of either, sometimes with M1 or other turrets and reticles. As far as the NightForce scope, the 2.5-10x24mm is not generally released to the public anymore (with one recent exception through Sniper's Hide), so many use the 32mm or even 42mm versions with the #22 High rings. As for the rings, any of the recent produced A.R.M.S. #22s with the lever-stop humps are functionally the same, the desire for non-lever-stops is purely aesthetic when going for the most authentic look. As LaRue LT-104s have been seen in use, it is justifiable to use one depending on whether you have a specific rifle you want to copy, or even just if you absolutely cannot acquire #22 High rings.

A.R.M.S. #38 SWAN Sleeve:
The #38 family of sleeves are no longer available. Finding them secondhand usually cost $250-$300 easy, more for rarer early variants. Fortunately, PRi's copies of the sleeves look and function almost identically, with minor visual differences. PRi and other builders supply these currently for complete Mod0 builds.

FSB:
While the set-screw version of PRi's FSB is spec, most use the cross-bolt, clamp-style version. They are extremely robust, and when aligned and torqued, have been shown to hold strong enough that you'll probably shear your barrel extension pin or upper before it budges. This is mainly how Mod0 uppers are supplied by most vendors, including PRi themselves.

Suppressor, Brake/Collar:
Diverging from the OPS Inc. or AEM brake and collar will get you MAJOR flak. Trust me, I've been running an AAC SPR/M4 for years now and it took a LONG time to not get clubbed every time I posted it. The Allen Engineering AEM5 is basically the current production of the OPS Inc. 12th Model, as they were originally made by Ron Allen and his team in the first place. Only minor differences separate original OPS Inc. cans from AE cans, and these are only obvious to trained eyes.

As far as the rest, you can swap Colt parts out for any other .mil-spec parts, like BCM, DD, CMT, etc. Any billet uppers/lowers, funky BCG coatings, extended bolt releases, etc. are extremely frowned upon. Remember, once you start going down the path of building a "better" rifle rather than what was spec, you're quickly beyond clone territory and would have been better off building a custom 16" or 20" rifle. Cloning is generally viewed as all-in or not at all.

* * * * * * * * * *

Complete Mk12 Mod0 / Mod1 Uppers
Bravo Company Manufacturing
High Caliber Sales
Precision Reflex Inc.

Specific Mk12 Tech
Augee's side-by-side comparison of the original ARMS SWAN Sleeve and PRI reproduction PEQ Sleeves: bottom of p136
KOBK's side-by-side comparison of PRI Gen I, II, and III handguards, and Gen I and Gen II FSBs, and SWANs: middle of p137
Augee's Mod1 gas block tech: top half of p357
Glass1's Early Mod0 photo breakdown: middle of p449
tamboi's Leupold Vari-X, TS30, and TS30A2 scope history/lineage, and part numbers, p.792

Attachment Attached File
Link Posted: 5/4/2021 10:22:49 AM EDT
[#1]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By ringer706:


"It's long, hard....discreet packaging...did my wife order something?"  

Glad to see they showed up in one piece! Hope y'all like the little treats I threw in. Lot's of delivered packages today! @kmcale did it right, let's see some more.


View Quote



Got mine yesterday.  They're awesome!  Thanks again for all your hard work Ringer706!
Link Posted: 5/4/2021 7:37:12 PM EDT
[#2]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By lancecriminal86:


We've tried to get Dewey to run some more but they were completely uninterested.

Your best bet there is chop a longer one down and make/mod in a female insert then paint it black, which has been done in the thread here.

Or get an original but can't help you with that one
View Quote

I do have a longer one laying around.. I could give it a go, maybe something to consider here soon
Link Posted: 5/4/2021 8:46:35 PM EDT
[#3]
I need some mod 1 inspiration if you kind folk wouldn't mind posting some pics of yours.  Barrel for my mod 0 is at the smith for for a week or two having flats milled and figured I'd use our time apart to start getting to know her sister a bit better
Link Posted: 5/4/2021 8:50:46 PM EDT
[Last Edit: Gremyashchy1911] [#4]
Someone ask for Mod 1 pics? First time with the silencer attached, got 8-1/4 to 8-1/2 turns with this HCS barrel.


Forgot to check the lighting so crap photos as per usual from me but the case is almost all correct and but the normal infractions on the build.
P.S. the bore guild is in the case but hidden in the shadows
Link Posted: 5/4/2021 8:54:18 PM EDT
[#5]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By teamjawbox:
I need some mod 1 inspiration if you kind folk wouldn't mind posting some pics of yours.  Barrel for my mod 0 is at the smith for for a week or two having flats milled and figured I'd use our time apart to start getting to know her sister a bit better
View Quote


Attachment Attached File
Attachment Attached File
Link Posted: 5/4/2021 8:55:12 PM EDT
[#6]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Gremyashchy1911:
Someone ask for Mod 1 pics? First time with the silencer attached, got 8-1/4 to 8-1/2 turns with this HCS barrel.
https://i.imgur.com/triVemF.jpg
https://i.imgur.com/VCaHYDm.jpg
Forgot to check the lighting so crap photos as per usual from me but the case is almost all correct and but the normal infractions on the build.
P.S. the bore guild is in the case but hidden in the shadows
View Quote


That is great!  Thanks for the pics and congrats on the case and the case candy.  Manuals and cards are hopefully in my future!
Link Posted: 5/4/2021 9:02:02 PM EDT
[#7]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By SDMF_Rebel:
Originally Posted By teamjawbox:
I need some mod 1 inspiration if you kind folk wouldn't mind posting some pics of yours.  Barrel for my mod 0 is at the smith for for a week or two having flats milled and figured I'd use our time apart to start getting to know her sister a bit better


https://www.ar15.com/media/mediaFiles/220444/20210408_101318_HDR_2_jpg-1929843.JPGhttps://www.ar15.com/media/mediaFiles/220444/20210405_170056_1__2_jpg-1929844.JPG


There's so much to love in there, holy cow.  The mod 1 with the leupold is killer!
Link Posted: 5/4/2021 9:58:00 PM EDT
[#8]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Gremyashchy1911:
Someone ask for Mod 1 pics? First time with the silencer attached, got 8-1/4 to 8-1/2 turns with this HCS barrel.
https://i.imgur.com/igWrzPk.jpg
https://i.imgur.com/VCaHYDm.jpg
Forgot to check the lighting so crap photos as per usual from me but the case is almost all correct and but the normal infractions on the build.
P.S. the bore guild is in the case but hidden in the shadows
View Quote


I see it .

Great setup though! I've got the slab-sided Mk4 and I'm really thinking I should've gone with the big nightforce. How's the eye relief on that? I'm normally nose to charging handle on AR's just from shooting NRA high power, and with Mk4 on ARMS rings, my cheek is almost hanging off the end of the stock.
Link Posted: 5/4/2021 11:17:17 PM EDT
[#9]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By kmcale:
Got the bore guides in today. Big thanks to USMCSGT0331 for offering the original to be recreated, and ringer706 for the time invested into the project. They turned out awesome!
https://www.ar15.com/media/mediaFiles/488238/20210503_121509_jpg-1928065.JPG
Deployment kit is now finished
View Quote


Looks great!

Also...
Please someone make more of the books! Or at least email me some pdfs! I've been trying to find copies of Mk 12 and Mk 13 manuals for months now.
Link Posted: 5/4/2021 11:27:45 PM EDT
[#10]
Put me down for a set of the books as well. Kicking myself now for not getting in on the last run.

Link Posted: 5/5/2021 1:13:03 AM EDT
[#11]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By ringer706:


I see it .

Great setup though! I've got the slab-sided Mk4 and I'm really thinking I should've gone with the big nightforce. How's the eye relief on that? I'm normally nose to charging handle on AR's just from shooting NRA high power, and with Mk4 on ARMS rings, my cheek is almost hanging off the end of the stock.
View Quote


Eye relief is pretty excellent with my nose on the charging handle above 8x it starts to get fussy about picture. That said a half inch gap nose to charging handle it’s clean and clear across the hole range. Objective housing is a little further forward than the case really likes but it all still fits and I could bring it back and still get comfortable on the stock.
Link Posted: 5/5/2021 1:43:37 AM EDT
[#12]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Gremyashchy1911:


Eye relief is pretty excellent with my nose on the charging handle above 8x it starts to get fussy about picture. That said a half inch gap nose to charging handle it’s clean and clear across the hole range. Objective housing is a little further forward than the case really likes but it all still fits and I could bring it back and still get comfortable on the stock.
View Quote


Woof, alright, well one more thing to keep my eye out for then


Also, last call for spare bore guides! I have 3 non-engraved and 2 engraved guides left over as of right now. I can sell 2 immediately, and once the remaining 3 guides in the mail from the regular orders get delivered, I'll release the remaining 3 spares. I'm more than willing to do another run in the future if there's enough demand, but I have zero idea when, or more importantly IF that'll ever be. Send me a PM or email if you're interested.
Link Posted: 5/5/2021 4:03:11 AM EDT
[#13]
The x50 NF is nice and my dream scope for the Mk12 but TheShlouf is killing me with that mildot 2.5-10x24 NF that optic is beautiful. Even more so with that chicken scratch on the bottom of the turret housing!
Link Posted: 5/5/2021 10:21:19 AM EDT
[#14]
Link Posted: 5/5/2021 11:21:28 AM EDT
[#15]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Gremyashchy1911:
The x50 NF is nice and my dream scope for the Mk12 but TheShlouf is killing me with that mildot 2.5-10x24 NF that optic is beautiful. Even more so with that chicken scratch on the bottom of the turret housing!
View Quote


If it makes you feel any better, it pretty much fell into my lap. The guy messaged me first about some completely unrelated arms rings stuff. In chatting with him he mentioned he had it along with a sizable collection of mil contract NFs, so I asked if it was for sale.

Link Posted: 5/5/2021 1:23:59 PM EDT
[Last Edit: KGLaw] [#16]
Gen juan, deux, tree....   Or will be once I get some gas tubes in.
Potatopicarama.

Attachment Attached File
Link Posted: 5/5/2021 2:13:53 PM EDT
[#17]
I have a request for someone in here with ARMS rings and some calipers.

On the bottom of the rings, there is a crossbar that fits into the slots of picatinny rails. Can someone measure how thick that cross bar is?

I have a side project with a weaver rail (narrower slots than picatinny) and wondering if ARMS rings may works.
Link Posted: 5/5/2021 2:18:15 PM EDT
[Last Edit: teamjawbox] [#18]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By JSchell1309:
I have a request for someone in here with ARMS rings and some calipers.

On the bottom of the rings, there is a crossbar that fits into the slots of picatinny rails. Can someone measure how thick that cross bar is?

I have a side project with a weaver rail (narrower slots than picatinny) and wondering if ARMS rings may works.
View Quote


I got 4.81mm deep and about 2.65mm tall
Link Posted: 5/5/2021 2:34:55 PM EDT
[#19]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Hunterex:
Gen juan, deux, tree....   Or will be once I get some gas tubes in.
Potatopicarama.

https://www.ar15.com/media/mediaFiles/59096/DSC_0711_jpg-1930497.JPG
View Quote


That middle one with the malformed brake...you can send it to me for some TLC and repair.
Man those straight tube Mod 0’s are sexy as hell!
Link Posted: 5/5/2021 2:41:34 PM EDT
[#20]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Gremyashchy1911:


That middle one with the malformed brake...you can send it to me for some TLC and repair.
Man those straight tube Mod 0’s are sexy as hell!
View Quote


The untimed brakes are going to annoy the heck out of me until the tubes arrive.
Link Posted: 5/5/2021 2:46:03 PM EDT
[#21]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Hunterex:


The untimed brakes are going to annoy the heck out of me until the tubes arrive.
View Quote


That’s why I keep junk crush washers around stacked two on mine so I could time the brake while I was waiting on parts. Not real pretty but works to keep it from being eye poking to me as they rattle around in the safe.
Link Posted: 5/5/2021 7:41:28 PM EDT
[#22]
Discussion ForumsJump to Quoted PostQuote History


Mama Mia!  Look at that.  Like a bar of gold attached to that RAS.  Very nice!
Link Posted: 5/5/2021 7:43:42 PM EDT
[#23]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Hunterex:
Gen juan, deux, tree....   Or will be once I get some gas tubes in.
Potatopicarama.

https://www.ar15.com/media/mediaFiles/59096/DSC_0711_jpg-1930497.JPG
View Quote

These look amazing, that Gen I is stuff of dreams

You and lancecriminal should definitely post more.
Link Posted: 5/5/2021 11:02:45 PM EDT
[Last Edit: secretwheelman] [#24]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Hunterex:
Gen juan, deux, tree....   Or will be once I get some gas tubes in.
Potatopicarama.

https://www.ar15.com/media/mediaFiles/59096/DSC_0711_jpg-1930497.JPG
View Quote
Livin' the dream.
Link Posted: 5/6/2021 2:57:52 PM EDT
[#25]
So I just got my two bore guides, they look sweet!


Question...what do you use them for?
Link Posted: 5/6/2021 3:40:30 PM EDT
[#26]
Discussion ForumsJump to Quoted PostQuote History


pp --> PP
Link Posted: 5/6/2021 3:51:19 PM EDT
[#27]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By PA-Minuteman:
So I just got my two bore guides, they look sweet!


Question...what do you use them for?
View Quote

Yes, mine was in my mailbox for a couple days before I had time to grab it, then sat on my counter until this am. They are true works of art!  The answer to your question is, to make others envious when you put them in your now complete deployment case.
Link Posted: 5/6/2021 4:12:13 PM EDT
[#28]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By mstennes:

Yes, mine was in my mailbox for a couple days before I had time to grab it, then sat on my counter until this am. They are true works of art!  The answer to your question is, to make others envious when you put them in your now complete deployment case.
View Quote
Lol I still need the Dewy Rod and the cleaning pouch...THEN its done
Link Posted: 5/6/2021 7:05:21 PM EDT
[#29]
Shark Arms is advertising MK12 bore guides.

From the same run we got or did someone else do a repro too?
Link Posted: 5/6/2021 7:07:23 PM EDT
[#30]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By JLAudio:
Shark Arms is advertising MK12 bore guides.

From the same run we got or did someone else do a repro too?
View Quote


The photo I saw of one he had posted with a serial number engraved looked like the same serial # Ringer706 used for his. Would be curious to know if same run as well.
Link Posted: 5/6/2021 7:43:34 PM EDT
[#31]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By teamjawbox:


The photo I saw of one he had posted with a serial number engraved looked like the same serial # Ringer706 used for his. Would be curious to know if same run as well.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By teamjawbox:
Originally Posted By JLAudio:
Shark Arms is advertising MK12 bore guides.

From the same run we got or did someone else do a repro too?


The photo I saw of one he had posted with a serial number engraved looked like the same serial # Ringer706 used for his. Would be curious to know if same run as well.

The engraving is a part number, not a serial number if I'm not mistaken.
Link Posted: 5/6/2021 8:47:35 PM EDT
[#32]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By JLAudio:
Shark Arms is advertising MK12 bore guides.

From the same run we got or did someone else do a repro too?
View Quote
So is this a good thing or a bad thing?
Link Posted: 5/6/2021 9:13:25 PM EDT
[#33]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By PA-Minuteman:
So is this a good thing or a bad thing?
View Quote


Depends on the pricing.
Link Posted: 5/6/2021 10:54:26 PM EDT
[#34]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By teamjawbox:


The photo I saw of one he had posted with a serial number engraved looked like the same serial # Ringer706 used for his. Would be curious to know if same run as well.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By teamjawbox:
Originally Posted By JLAudio:
Shark Arms is advertising MK12 bore guides.

From the same run we got or did someone else do a repro too?


The photo I saw of one he had posted with a serial number engraved looked like the same serial # Ringer706 used for his. Would be curious to know if same run as well.


Yes, these are the same. I reached out to Chris at Shark when I was first starting out on the project to see if he was interested so that I would have enough ordered to make the project possible.
Link Posted: 5/6/2021 10:57:11 PM EDT
[#35]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By ringer706:


Yes, these are the same. I reached out to Chris at Shark when I was first starting out on the project to see if he was interested so that I would have enough ordered to make the project possible.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By ringer706:
Originally Posted By teamjawbox:
Originally Posted By JLAudio:
Shark Arms is advertising MK12 bore guides.

From the same run we got or did someone else do a repro too?


The photo I saw of one he had posted with a serial number engraved looked like the same serial # Ringer706 used for his. Would be curious to know if same run as well.


Yes, these are the same. I reached out to Chris at Shark when I was first starting out on the project to see if he was interested so that I would have enough ordered to make the project possible.

Good plan. Always cheaper in bulk, which saved us some money.
Link Posted: 5/6/2021 11:03:28 PM EDT
[#36]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By ArmyPilot12:

Good plan. Always cheaper in bulk, which saved us some money.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By ArmyPilot12:
Originally Posted By ringer706:
Originally Posted By teamjawbox:
Originally Posted By JLAudio:
Shark Arms is advertising MK12 bore guides.

From the same run we got or did someone else do a repro too?


The photo I saw of one he had posted with a serial number engraved looked like the same serial # Ringer706 used for his. Would be curious to know if same run as well.


Yes, these are the same. I reached out to Chris at Shark when I was first starting out on the project to see if he was interested so that I would have enough ordered to make the project possible.

Good plan. Always cheaper in bulk, which saved us some money.


Bingo. It helped out a lot and made things a lot more possible.
Link Posted: 5/6/2021 11:54:35 PM EDT
[#37]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By ringer706:


Bingo. It helped out a lot and made things a lot more possible.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By ringer706:
Originally Posted By ArmyPilot12:
Originally Posted By ringer706:
Originally Posted By teamjawbox:
Originally Posted By JLAudio:
Shark Arms is advertising MK12 bore guides.

From the same run we got or did someone else do a repro too?


The photo I saw of one he had posted with a serial number engraved looked like the same serial # Ringer706 used for his. Would be curious to know if same run as well.


Yes, these are the same. I reached out to Chris at Shark when I was first starting out on the project to see if he was interested so that I would have enough ordered to make the project possible.

Good plan. Always cheaper in bulk, which saved us some money.


Bingo. It helped out a lot and made things a lot more possible.


Very cool.  He's a good guy too.  Have spent many a dollar with him, LOL.
Link Posted: 5/7/2021 12:14:59 AM EDT
[Last Edit: deadpunch] [#38]
I got a riddle for you boys.  Does anyone know how a way to tell from this packaging label if this #38 PEQ2-3 is wingless or not (I'm sure the answer is no) OR have any tricks to where I might be able to see into this?  This thing is triple wrapped with 2 mil packaging and I cannot make out the swan.  Sooooooo tempted to open it up but no way I'm doing it without exhausting any avenue to try and see it through the packaging with my own two eyes.  And no, shinning a flash light does not work.  Makes it harder to see actually.  Just hoping someone may have ran into one of these.

Attachment Attached File
Link Posted: 5/7/2021 7:21:29 AM EDT
[#39]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By deadpunch:
I got a riddle for you boys.  Does anyone know how a way to tell from this packaging label if this #38 PEQ2-3 is wingless or not (I'm sure the answer is no) OR have any tricks to where I might be able to see into this?  This thing is triple wrapped with 2 mil packaging and I cannot make out the swan.  Sooooooo tempted to open it up but no way I'm doing it without exhausting any avenue to try and see it through the packaging with my own two eyes.  And no, shinning a flash light does not work.  Makes it harder to see actually.  Just hoping someone may have ran into one of these.

https://www.ar15.com/media/mediaFiles/506521/Screen_Shot_2021-05-06_at_9_05_55_PM_png-1932797.JPG
View Quote


It's possible, but those overly long stainless slotted screws were used in the release they did around 2012, which were winged.
Link Posted: 5/7/2021 11:41:33 AM EDT
[Last Edit: deadpunch] [#40]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Hunterex:


It's possible, but those overly long stainless slotted screws were used in the release they did around 2012, which were winged.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Hunterex:
Originally Posted By deadpunch:
I got a riddle for you boys.  Does anyone know how a way to tell from this packaging label if this #38 PEQ2-3 is wingless or not (I'm sure the answer is no) OR have any tricks to where I might be able to see into this?  This thing is triple wrapped with 2 mil packaging and I cannot make out the swan.  Sooooooo tempted to open it up but no way I'm doing it without exhausting any avenue to try and see it through the packaging with my own two eyes.  And no, shinning a flash light does not work.  Makes it harder to see actually.  Just hoping someone may have ran into one of these.

https://www.ar15.com/media/mediaFiles/506521/Screen_Shot_2021-05-06_at_9_05_55_PM_png-1932797.JPG


It's possible, but those overly long stainless slotted screws were used in the release they did around 2012, which were winged.


The sheer fact that you just knew that from a friggin' bolt makes me question your sanity, sir.  And also mildly turns me on... . I did wonder about that screw as it was different from the other screws I've got.

If I decide to open these ones then I'll let you know for sure!
Link Posted: 5/7/2021 3:19:38 PM EDT
[#41]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By deadpunch:


The sheer fact that you just knew that from a friggin' bolt makes me question your sanity, sir.  And also mildly turns me on... . I did wonder about that screw as it was different from the other screws I've got.

If I decide to open these ones then I'll let you know for sure!
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By deadpunch:
Originally Posted By Hunterex:
Originally Posted By deadpunch:
I got a riddle for you boys.  Does anyone know how a way to tell from this packaging label if this #38 PEQ2-3 is wingless or not (I'm sure the answer is no) OR have any tricks to where I might be able to see into this?  This thing is triple wrapped with 2 mil packaging and I cannot make out the swan.  Sooooooo tempted to open it up but no way I'm doing it without exhausting any avenue to try and see it through the packaging with my own two eyes.  And no, shinning a flash light does not work.  Makes it harder to see actually.  Just hoping someone may have ran into one of these.

https://www.ar15.com/media/mediaFiles/506521/Screen_Shot_2021-05-06_at_9_05_55_PM_png-1932797.JPG


It's possible, but those overly long stainless slotted screws were used in the release they did around 2012, which were winged.


The sheer fact that you just knew that from a friggin' bolt makes me question your sanity, sir.  And also mildly turns me on... . I did wonder about that screw as it was different from the other screws I've got.

If I decide to open these ones then I'll let you know for sure!



I think you're right, Hunterex.  Turned off all the lights, ran a red light at an angle and underneath the magnifying glass and I think I'm making out a wing.  Hard to say for sure but I'm fairly positive.  Was hoping it was wingless but at least I've got a factory sealed crazy rare rail to find something to do with.
Link Posted: 5/7/2021 3:50:05 PM EDT
[#42]
Anyone have a lead or know we’re there’s AEM5 cans in stock
Link Posted: 5/7/2021 4:21:28 PM EDT
[#43]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Sn8kplissken:
Anyone have a lead or know we’re there’s AEM5 cans in stock
View Quote


One on GunBroker but it’s high, other then that jump on a waiting list. I got lucky and found mine in a retail store for a lead and grabbed it turn of the year.
https://www.gunbroker.com/item/899844293
Link Posted: 5/7/2021 4:28:37 PM EDT
[#44]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By deadpunch:



I think you're right, Hunterex.  Turned off all the lights, ran a red light at an angle and underneath the magnifying glass and I think I'm making out a wing.  Hard to say for sure but I'm fairly positive.  Was hoping it was wingless but at least I've got a factory sealed crazy rare rail to find something to do with.
View Quote


I’m not above taking donations.....
Only kidding but that is a awesome thing to have new in wrapper.
Link Posted: 5/7/2021 4:38:20 PM EDT
[#45]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Gremyashchy1911:


One on GunBroker but it’s high, other then that jump on a waiting list. I got lucky and found mine in a retail store for a lead and grabbed it turn of the year.
https://www.gunbroker.com/item/899844293
View Quote


JFC I paid $625 for mine.
Link Posted: 5/7/2021 5:02:57 PM EDT
[#46]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Sn8kplissken:
Anyone have a lead or know we’re there’s AEM5 cans in stock
View Quote


You probably did this but call ever gunshop you can feasibly drive to.  I've found a couple through small ma and pa's.  I will post up if I run into another.
Link Posted: 5/7/2021 5:09:54 PM EDT
[Last Edit: Sn8kplissken] [#47]
I will keep my eyes open for one and hop on it thanks ya I heard they quit making them too don’t know if that’s true or not ..
Link Posted: 5/7/2021 5:20:29 PM EDT
[#48]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By stainlineho:


JFC I paid $625 for mine.
View Quote


JFC the seller bridged the gap.
Link Posted: 5/7/2021 5:20:30 PM EDT
[#49]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Sn8kplissken:
I will keep my eyes open for one and hop on it thanks ya I heard they quit making them too don’t know if that’s true or not ..
View Quote


It's not true.  Ron is still pumping them out.  I put to bed the "retirement" rumor as well.  Spoke to him about a month ago and he kinda chuckled about it.  He said that he's merely going back to a 40 hour work week.
Link Posted: 5/7/2021 5:44:11 PM EDT
[#50]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By deadpunch:


It's not true.  Ron is still pumping them out.  I put to bed the "retirement" rumor as well.  Spoke to him about a month ago and he kinda chuckled about it.  He said that he's merely going back to a 40 hour work week.
View Quote


Don’t think you can really call it a rumor since it came from the man himself, but that is good news that he will be staying active.
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