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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. * * * * * * * * * * 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.
The upper receivers, which ultimately differentiate the four variants of the Mk12, have the most variation between each other. Early SPR/Mod0
ModH, Mod "Holland"
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 * * * * * * * * * * As of 16 May 2024, Ron Allen is still making custom parts for his suppressors: * * * * * * * * * *  Attached File |
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Posted: 3/27/2017 9:35:35 PM EDT
[#1]
Ok guys, let me get y'alls opinion. About to camo my newly completed Holland........should I go rattlecan or Duracoat?
Thanks! |
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IN, USA
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Posted: 3/27/2017 9:47:39 PM EDT
[Last Edit: aaron580]
[#2]
Quote HistoryOriginally Posted By exhogflyer:
Ok guys, let me get y'alls opinion. About to camo my newly completed Holland........should I go rattlecan or Duracoat? Thanks! 
For all you rattle canners out there, what is a color close to coyote brown like the lmt fde, magpul, or b5 stocks? Sand is a tad too bright for my taste and earth is a tad dark. Rustoleum camo colors were used. |
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Posted: 3/27/2017 10:06:27 PM EDT
[#3]
Quote HistoryOriginally Posted By exhogflyer:
Ok guys, let me get y'alls opinion. About to camo my newly completed Holland........should I go rattlecan or Duracoat? Thanks! 
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Posted: 3/27/2017 10:47:31 PM EDT
[#4]
Yall gonna get this thread locked up posting sale posts and shit.
No way do I want to miss out on owning page 1000 twice in a row in the same thread... I rustled everyones Jimmies last time and it was glorious. |
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TX, USA
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Posted: 3/28/2017 1:20:20 AM EDT
[#5]
Sierra's cover photo of a mod1
https://www.facebook.com/SierraBullets/ |
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PA, USA
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Posted: 3/28/2017 11:41:39 AM EDT
[#6]
Quote HistoryOriginamlly Posted By dangerdan:
Yall gonna get this thread locked up posting sale posts and shit. No way do I want to miss out on owning page 1000 twice in a row in the same thread... I rustled everyones Jimmies last time and it was glorious. srsly tho. lol |
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GA, USA
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Posted: 3/28/2017 12:14:33 PM EDT
[#7]
807 pages?
They better not lock this thread! |
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Posted: 3/28/2017 12:49:00 PM EDT
[Last Edit: HARMS4X]
[#8]
I'm about to spend 1750.00 bucks on a 2.5-10x24 scope because my buddy just left me his NF and for fuck sake the eye box isnt that bad at all.
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PA, USA
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Posted: 3/28/2017 1:08:05 PM EDT
[#9]
Quote HistoryOriginally Posted By HARMS4X:
I'm about to spend 1750.00 bucks on a 2.5-10x24 scope because my buddy just left me his NF and for fuck sake the eye box isnt that bad at all. never looked through a bad nf myself tho. |
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Posted: 3/28/2017 2:11:57 PM EDT
[#10]
It wasn't just here several others sites had mention the tight eye box but I will try his prone today and see.
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Posted: 3/28/2017 2:20:12 PM EDT
[#11]
The eyebox is touchy but I think people make it out to be a bigger deal than it really is.
I'll often be firing 2-3 scoped guns at the range and completely forget about the x24's eyebox. As long as you're consistent with your cheek weld/head placement on the stock, you rarely have to shift around to get a clear sight picture. I love mine and still can't believe how bright/detailed the image is for a 24mm objective. |
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IN, USA
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Posted: 3/28/2017 2:52:26 PM EDT
[Last Edit: aaron580]
[#12]
Only complaint I have with my x24 after using it is low light, it's darker compared too my vortex razor at 6x. 4x and above in darker conditions, forget it. Otherwise, didn't even have to adjust mine out of the box, 1 turret click and it was 100% at 100 yards with my mod 1, no switching it up now
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OR, USA
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Posted: 3/28/2017 6:04:42 PM EDT
[Last Edit: mrsaturn7085]
[#13]
Quote HistoryOriginally Posted By Regulatori:
The eyebox is touchy but I think people make it out to be a bigger deal than it really is. I'll often be firing 2-3 scoped guns at the range and completely forget about the x24's eyebox. As long as you're consistent with your cheek weld/head placement on the stock, you rarely have to shift around to get a clear sight picture. I love mine and still can't believe how bright/detailed the image is for a 24mm objective. I have the x24 and while I hate these issues, I doubt I'll ever sell it. |
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USA
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Posted: 3/28/2017 6:25:15 PM EDT
[#14]
The 24x has the appeal of it's history along with its size and weight. The biggest downfall of the optic is its low light capabilities or lack thereof. It simply sucks in low light conditions and is rendered almost unusable at anything more than 4x under those conditions. One would have to assume that this is why NF offered it in two bigger objective seizes later on. I sold my last one a few years back and while I almost picked up another one recently for a Mod 1 build I decided to spend half as much and go with the Mk4 instead.
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Posted: 3/28/2017 7:08:13 PM EDT
[Last Edit: HARMS4X]
[#15]
Quote HistoryOriginally Posted By STXDobie:
The 24x has the appeal of it's history along with its size and weight. The biggest downfall of the optic is its low light capabilities or lack thereof. It simply sucks in low light conditions and is rendered almost unusable at anything more than 4x under those conditions. One would have to assume that this is why NF offered it in two bigger objective seizes later on. I sold my last one a few years back and while I almost picked up another one recently for a Mod 1 build I decided to spend half as much and go with the Mk4 instead. AEM5 should be here next month so then it's paint time. Now I have this to deal with 
 Attached File |
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Posted: 3/28/2017 7:59:07 PM EDT
[#16]
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Posted: 3/28/2017 8:05:45 PM EDT
[#17]
Quote HistoryOriginally Posted By edwin907:
807 pages? They better not lock this thread! |
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OK, USA
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Posted: 3/28/2017 10:45:37 PM EDT
[#18]
Quote HistoryOriginally Posted By Davey_Sickboy:
Sierra's cover photo of a mod1 https://www.facebook.com/SierraBullets/ |
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Posted: 3/29/2017 12:22:37 AM EDT
[#19]
Quote HistoryOriginally Posted By Zakk101abn:
Shitty phone pic https://www.AR15.Com/media/mediaFiles/367025/IMG-9490-176228.JPG 
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FL, USA
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Posted: 3/29/2017 2:25:46 AM EDT
[#20]
What would the correct RDS (if any?) be for a Mk12Mod1?
I see the Mod0 has the Doctor in the Wilcox ring mount and I'm assuming that's what the ARMS ring rail is for; did they completely do away with a RDS for the Mod1, or what would be the correct setup(s)? |
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Posted: 3/29/2017 3:01:57 AM EDT
[Last Edit: wayfaerer320]
[#21]
Deleted.
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Posted: 3/29/2017 3:12:39 AM EDT
[#22]
Has this been posted before? Don't recall ever seeing it, but this thread is massive so I'm willing to bet it has:
Afghanistan - 2006 
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Posted: 3/29/2017 8:29:04 AM EDT
[#23]
Bore guides came yesterday. I have to go pick them up from the post office today. The Ballistic cards are done. I also got my barrel from CLE. Seems pretty cool. I won't know how it really looks until I put the upper back together. Now all I need is a set screw fsgb to correct the late mod 0.
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Posted: 3/29/2017 9:39:17 AM EDT
[#24]
Quote HistoryOriginally Posted By wayfaerer320:
Has this been posted before? Don't recall ever seeing it, but this thread is massive so I'm willing to bet it has: Afghanistan - 2006 http://media.gettyimages.com/photos/sniper-team-scan-the-nearby-hills-after-three-wounded-us-army-from-picture-id71788570 
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USA
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Posted: 3/29/2017 10:14:54 AM EDT
[#25]
Quote HistoryOriginally Posted By Samson-Dogg:
Bore guides came yesterday. I have to go pick them up from the post office today. The Ballistic cards are done. |
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MN, USA
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Posted: 3/29/2017 10:40:54 AM EDT
[Last Edit: Lurp06x]
[#26]
^^^^ my fav pic so far makes it feel real.
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Posted: 3/29/2017 11:46:46 AM EDT
[#27]
Quote HistoryOriginally Posted By RTUtah:
First I've seen it, I think. Scary as fuck to see these dudes aiming up so high; bad spot to be in. Quote HistoryOriginally Posted By RTUtah:
Originally Posted By wayfaerer320:
Has this been posted before? Don't recall ever seeing it, but this thread is massive so I'm willing to bet it has: Afghanistan - 2006 http://media.gettyimages.com/photos/sniper-team-scan-the-nearby-hills-after-three-wounded-us-army-from-picture-id71788570 Below are the bore guides. I laid one next to a tape just for reference. They are raw aluminum now but will be anodized soon.  Attached File Attached File Attached File Attached File |
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Posted: 3/29/2017 11:49:52 AM EDT
[#28]
Quote HistoryOriginally Posted By RTUtah:
First I've seen it, I think. Scary as fuck to see these dudes aiming up so high; bad spot to be in. Quote HistoryOriginally Posted By RTUtah:
Originally Posted By wayfaerer320:
Has this been posted before? Don't recall ever seeing it, but this thread is massive so I'm willing to bet it has: Afghanistan - 2006 http://media.gettyimages.com/photos/sniper-team-scan-the-nearby-hills-after-three-wounded-us-army-from-picture-id71788570 According to the caption, they were providing cover while wounded were being evacuated. |
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Posted: 3/29/2017 12:07:31 PM EDT
[Last Edit: Engineer5]
[#29]
 It's just some kind of plastic like Derlin.
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Posted: 3/29/2017 12:30:16 PM EDT
[Last Edit: Samson-Dogg]
[#30]
Probably just me but they seem bigger than I expected. I'll try one in an upper. The inside diameter of the tip that goes into the extension is about 5.5 mm which is as close as I can read anyway. I guess just for some reason I look at it as it should fit inside a barrel which would be stupid but I think that's what makes me feel like they are too big.
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OR, USA
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Posted: 3/29/2017 1:29:34 PM EDT
[#31]
Quote HistoryOriginally Posted By STXDobie:
The 24x has the appeal of it's history along with its size and weight. The biggest downfall of the optic is its low light capabilities or lack thereof. It simply sucks in low light conditions and is rendered almost unusable at anything more than 4x under those conditions. One would have to assume that this is why NF offered it in two bigger objective seizes later on. I sold my last one a few years back and while I almost picked up another one recently for a Mod 1 build I decided to spend half as much and go with the Mk4 instead. |
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Posted: 3/29/2017 2:35:40 PM EDT
[Last Edit: Engineer5]
[#32]
The gangs all here!
Finally completed my Mk12 trio. I haven't had it out yet but I think the H is going to be my favorite. I don't even want to know how much money is in this picture. 
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Posted: 3/29/2017 2:38:28 PM EDT
[#33]
I need to finish all my braceman lowers. Probably get on that after the bore guides. I think we will have everything for the cases after that.
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Posted: 3/29/2017 2:40:34 PM EDT
[#34]
Quote HistoryOriginally Posted By Engineer5:
The gangs all here! Finally completed my Mk12 trio. I haven't had it out yet but I think the H is going to be my favorite. I don't even want to know how much money is in this picture.
http://img.photobucket.com/albums/v456/Engineer23/019_zpssnv1zb6n.jpg |
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USA
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Posted: 3/29/2017 2:48:34 PM EDT
[#35]
@Samson - hey brother I'm throwing this at you bc you have been all on fabbing things lately. But about our set screw delema, do you think we could have braceman take a gen 3 set screw fsb and mill the face down to where the "PRI USA" engraving is gone and then have him engrave the proper markings with the full address and then have your coatings guy re-anodize the tower? I've got a pic of the markings on the newer tower and Pri is selling set screw fsb's for the gen 3 still. If I'm gonna pull the barrel to get flats milled I want to get the proper tower installed....cause it's not gonna be fun pulling it apart again. Let me know what you think? It may be more work than it's worth but if we can get enough people maybe we can do a group buy on parts and/or labor.
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Posted: 3/29/2017 2:55:48 PM EDT
[#36]
Quote HistoryOriginally Posted By Engineer5:
The gangs all here! Finally completed my Mk12 trio. I haven't had it out yet but I think the H is going to be my favorite. I don't even want to know how much money is in this picture.
http://img.photobucket.com/albums/v456/Engineer23/019_zpssnv1zb6n.jpg |
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Posted: 3/29/2017 3:15:56 PM EDT
[#37]
Quote HistoryOriginally Posted By Dobs013:
@Samson - hey brother I'm throwing this at you bc you have been all on fabbing things lately. But about our set screw delema, do you think we could have braceman take a gen 3 set screw fsb and mill the face down to where the "PRI USA" engraving is gone and then have him engrave the proper markings with the full address and then have your coatings guy re-anodize the tower? I've got a pic of the markings on the newer tower and Pri is selling set screw fsb's for the gen 3 still. If I'm gonna pull the barrel to get flats milled I want to get the proper tower installed....cause it's not gonna be fun pulling it apart again. Let me know what you think? It may be more work than it's worth but if we can get enough people maybe we can do a group buy on parts and/or labor. |
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USA
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Posted: 3/29/2017 3:38:32 PM EDT
[Last Edit: Dobs013]
[#38]
Quote HistoryOriginally Posted By Samson-Dogg:
I don't see why not. It couldn't hurt to ask. I'm in on that for sure. So basically all that needs to be done is the face of the tower milled smooth then engraved with the proper marks? No other mods? I can email him and see what he thinks. He has done some amazing retro parts I never knew he did. Things we don't use here but I know he has done exactly what we are discussing on barrels for the retro guys. Quote HistoryOriginally Posted By Samson-Dogg:
Originally Posted By Dobs013:
@Samson - hey brother I'm throwing this at you bc you have been all on fabbing things lately. But about our set screw delema, do you think we could have braceman take a gen 3 set screw fsb and mill the face down to where the "PRI USA" engraving is gone and then have him engrave the proper markings with the full address and then have your coatings guy re-anodize the tower? I've got a pic of the markings on the newer tower and Pri is selling set screw fsb's for the gen 3 still. If I'm gonna pull the barrel to get flats milled I want to get the proper tower installed....cause it's not gonna be fun pulling it apart again. Let me know what you think? It may be more work than it's worth but if we can get enough people maybe we can do a group buy on parts and/or labor. 
This is the fsb we would need to start from http://www.precisionreflex.com/Detail.aspx?PROD=186688&CAT=10199 |
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Posted: 3/29/2017 4:04:13 PM EDT
[#39]
Early SPR, LaRue mount, non illum 3.5-10, SOPMOD stock so maybe M4A1 lower or stock swap.
It's all out there, no point being clone police anymore. 
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Posted: 3/29/2017 4:06:44 PM EDT
[#40]
Quote HistoryOriginally Posted By deuc224:
I wiped them off and cleaned the threads also before i tried the A2, the brake looks bad but the threads look flawless, that nitride barrel is tough as hell. I doubt adco will gimme another brake but hoping ballistic advantage makes it right. Maybe the barrel had swollen during the nitride process? |
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CA, USA
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Posted: 3/29/2017 4:47:18 PM EDT
[#41]
Quote HistoryOriginally Posted By lancecriminal86:
Early SPR, LaRue mount, non illum 3.5-10, SOPMOD stock so maybe M4A1 lower or stock swap. It's all out there, no point being clone police anymore. http://www.isayeret.com/content/introduction/training/images/yahalom-2.jpg |
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Posted: 3/29/2017 6:26:46 PM EDT
[#42]
The bore guides fit good. They fit a little tighter in some uppers than others. Granted they are dry and so are the uppers. I'm running them up to anodize tomorrow on my lunch break. Already set that up.
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USA
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Posted: 3/29/2017 6:50:59 PM EDT
[#43]
I've just completed my MK12 Mod0 SPR build and now of course I'm looking for some ammo. My barrel is a Ballistic Advantage 18" .223 Wylde SPR Stainless Steel Rifle Length AR 15 Barrel w/ Ops 12, Premium Series
Ballistic Advantage 18" SPR Barrel By the way, I managed to get this Barrel for $168.00 When it was on sale during Christmas. Based on my research it looks like 5.56mm 77gr NATO is the way to go cost wise over .223 which seems to be more expensive however since my barrel is a .223 Wylde barrel I'm thinking that .223 match ammo is the way to go even through it cost more. So I'm putting it out there as to what should I choose as the right ammo. I'm looking at some Fiocchi 223 REM 77 GR MATCHKING HPBT or some Federal FC262 Rifle Ammo 223 Remington/5.56 NATO 77 GR Open Tip Match (Case, 200 Total Rounds) I know that a Wylde Chamber barrel can use both .223 and 5.56mm but for the sake of optimum accuracy and compatibility should I go with .223 or 5.56mm? What would you recommend? Oh and by the way here are some pictures of my MK12 Mod0 build. PWS Lower reciever Aero Precision upper reciever Ballistic Advantage 18" .223 Wylde SPR Stainless Steel Rifle Length AR 15 Barrel w/ Ops 12, Premium Series Precision Reflex AR15 SPR Straight Top Rail Precision Reflex GenIII Round Free Float Forearm Mission First Tactical BUS Stock with BACP ops inc mk12 mod 1 threaded muzzle brake and collar Harris Bipod Ergo Pistol Grip A.R.M.S. #40 Rear BUIS PRI Flip Up Front Sight with Nikon M223 3x12SF Scope with BDC reticle AD-RECON Scope Mount 
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Posted: 3/29/2017 6:57:28 PM EDT
[#44]
Quote HistoryOriginally Posted By RTUtah:
First I've seen it, I think. Scary as fuck to see these dudes aiming up so high; bad spot to be in. Quote HistoryOriginally Posted By RTUtah:
Originally Posted By wayfaerer320:
Has this been posted before? Don't recall ever seeing it, but this thread is massive so I'm willing to bet it has: Afghanistan - 2006 http://media.gettyimages.com/photos/sniper-team-scan-the-nearby-hills-after-three-wounded-us-army-from-picture-id71788570 |
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Posted: 3/29/2017 7:02:43 PM EDT
[Last Edit: 78Staff]
[#45]
Quote HistoryOriginally Posted By lancecriminal86:
Early SPR, LaRue mount, non illum 3.5-10, SOPMOD stock so maybe M4A1 lower or stock swap. It's all out there, no point being clone police anymore. http://www.isayeret.com/content/introduction/training/images/yahalom-2.jpg Before no-humps :) 
Hell, I had a 3.5-10 on there for a while too now that I think about it... Here is earlier version, with humps. 
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Posted: 3/29/2017 7:03:00 PM EDT
[#46]
That looks great!
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Posted: 3/29/2017 7:18:28 PM EDT
[#47]
Quote HistoryOriginally Posted By Samson-Dogg:
Bore guides came yesterday. I have to go pick them up from the post office today. The Ballistic cards are done. I also got my barrel from CLE. Seems pretty cool. I won't know how it really looks until I put the upper back together. Now all I need is a set screw fsgb to correct the late mod 0. |
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Posted: 3/29/2017 7:33:29 PM EDT
[#48]
Quote HistoryOriginally Posted By 78Staff:
Yeah LT104 makes it so much easier to get good ER, especially with the shorter A1 stock - I ran one for a while while sourcing some no-humps, and they work grat on this platform, and yes ITW approved :). But the 22's just look like they belong on these builds, so once I found a set without levers I went ahead and switched over. Before no-humps :) https://www.AR15.Com/media/mediaFiles/385949/IOActMz4-97239.jpg Hell, I had a 3.5-10 on there for a while too now that I think about it... Here is earlier version, with humps. http://i.imgur.com/z6LoOzy.jpg |
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Posted: 3/29/2017 8:19:22 PM EDT
[#49]
Quote HistoryOriginally Posted By 78Staff:
Yeah watching a lot of shows on AHC, Discovery, Youtube and the like it's amazing how many FOB's in Afghanistan wind up being in valleys with mountains on all sides... Seems like someone is always shooting down them every damn day. :( Quote HistoryOriginally Posted By 78Staff:
Originally Posted By RTUtah:
Originally Posted By wayfaerer320:
Has this been posted before? Don't recall ever seeing it, but this thread is massive so I'm willing to bet it has: Afghanistan - 2006 http://media.gettyimages.com/photos/sniper-team-scan-the-nearby-hills-after-three-wounded-us-army-from-picture-id71788570 |
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TX, USA
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Posted: 3/29/2017 9:19:31 PM EDT
[#50]
Quote HistoryOriginally Posted By blkrmycs:
Isn't that your photo they borrowed? Quote HistoryOriginally Posted By blkrmycs:
Originally Posted By Davey_Sickboy:
Sierra's cover photo of a mod1 https://www.facebook.com/SierraBullets/ |
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