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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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CHE
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Posted: 12/25/2017 12:01:28 PM EDT
[Last Edit: vnctmrn]
[#1]
Quote HistoryOriginally Posted By Twitchy:
Is it an ITAR restriction or something similar imposed by Germany that prevents someone from just shipping it to you? It could just be that the shops are lazy and don't feel like filling out the extra paperwork, or it could be due to an ITAR or similar restriction that will land both shipper and receiver in legal trouble. I don't know the answer, but if there isn't a restriction, I'd bet one of us here wouldn't have problem shipping it over assuming you pick up the cost.  There's ITAR restriction on like 99.9% of everything gun related. I literally couldn't even get a goddamn selector detent without approval by the DoS and proper export & import licenses if I wanted haha Cloning itself is already expensive as hell, and doing that outside the US is just... well let's just say I'm too broke to fix a broken tire on my car :) A single export license by the DoC is already around $2000. Luckily I know the right people... because obviously every customs agent knows that that specific spring is for an AR cough cough also, please just marry me for a green card??! |
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Posted: 12/25/2017 12:09:31 PM EDT
[#2]
Merry Christmas. Took the entire mk12 family to the range yesterday along with the Mk11 and m110. Trying to shrink the pics to load.
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OH, USA
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Posted: 12/25/2017 12:54:27 PM EDT
[#3]
Quote HistoryOriginally Posted By Samson-Dogg:
Merry Christmas. Took the entire mk12 family to the range yesterday along with the Mk11 and m110. Trying to shrink the pics to load. |
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Posted: 12/25/2017 3:05:13 PM EDT
[#4]
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Posted: 12/25/2017 3:08:05 PM EDT
[#5]
Quote HistoryOriginally Posted By prskiller:
Mele Kalikimaka everyone! https://www.AR15.Com/media/mediaFiles/356129/IMG_4239-401110.JPG |
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Posted: 12/25/2017 4:14:46 PM EDT
[#6]
Quote HistoryOriginally Posted By vnctmrn:
First off, merry christmas to everyone!! There's ITAR restriction on like 99.9% of everything gun related. I literally couldn't even get a goddamn selector detent without approval by the DoS and proper export & import licenses if I wanted haha Cloning itself is already expensive as hell, and doing that outside the US is just... well let's just say I'm too broke to fix a broken tire on my car :) A single export license by the DoC is already around $2000. Luckily I know the right people... because obviously every customs agent knows that that specific spring is for an AR cough cough also, please just marry me for a green card??! Quote HistoryOriginally Posted By vnctmrn:
Originally Posted By Twitchy:
Is it an ITAR restriction or something similar imposed by Germany that prevents someone from just shipping it to you? It could just be that the shops are lazy and don't feel like filling out the extra paperwork, or it could be due to an ITAR or similar restriction that will land both shipper and receiver in legal trouble. I don't know the answer, but if there isn't a restriction, I'd bet one of us here wouldn't have problem shipping it over assuming you pick up the cost. There's ITAR restriction on like 99.9% of everything gun related. I literally couldn't even get a goddamn selector detent without approval by the DoS and proper export & import licenses if I wanted haha Cloning itself is already expensive as hell, and doing that outside the US is just... well let's just say I'm too broke to fix a broken tire on my car :) A single export license by the DoC is already around $2000. Luckily I know the right people... because obviously every customs agent knows that that specific spring is for an AR cough cough also, please just marry me for a green card??! |
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Posted: 12/25/2017 4:27:49 PM EDT
[#7]
Just a quick example on how screwed up ITAR is, the original Leupold optics supplied for the MK12, ie the TS30 scopes and the MK4 3-9x36 are ITAR, as is the model 112633. The MK4 models 60150 and 67920 which were also supplied under contract and that have an NSN number are not ITAR restricted.
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Posted: 12/25/2017 6:31:48 PM EDT
[Last Edit: vnctmrn]
[#8]
Quote HistoryOriginally Posted By tamboi: ITAR is actually quite specific when it comes to firearm related items. Some scopes are ITAR many are not, rifle barrels can be exported without any license fee if the end user is using the barrel for sporting purposes. A friend ships barrels overseas regularly and it approximately $300 for the license whether it's ten or a hundred barrels. I know several companies and individuals shipping not only small parts, ammunition, components and semi-autos overseas, obviously with correct paperwork. An example is bullets, you do need the correct license to export as a company, the extra cost is minimal about 10% but I know many individuals bringing components home with them after shooting here in the States. Just went back to Europe and brought back several items that were legal to take with me, although the country I was visiting mags were a no no. I've tried getting a douglas (or any other spr profiled barrel for that matter) but another problem is, at least here in Switzerland, no shop is willing to help me out they all said something along the lines of "oh look we have that barrel and that scope, no idea what the hell you're talking about", and I can't import them myself. And barrels are considered a firearm here lol. Unfortunately importing ammo is just too complicated for me, I've been trying to get my hands on any 77gr stuff for months now :/ Swiss laws are pretty forgiving on one hand, but close minded on the other. I feel like a freak turning up to the range with a decked out call of duty future shit exoskeleton ar15  It sucks being into guns and customizing them outside the US because you can't just order any part that you want and throw em on your gun, it's all just restrictions here, restrictions there, oh you want that new geissele part? Well, too bad. Plus you can't just go to any range or out in the desert to shoot your new rifle. Even finding an outdor range is hard, most of them don't even allow ARs or your own ammo. In the end it's just about money and knowing the right people |
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Posted: 12/25/2017 11:00:09 PM EDT
[#9]
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UT, USA
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Posted: 12/26/2017 12:41:59 AM EDT
[#10]
Anyone have a line on a KAC RAS Forend Sling mount p/n 98721?
Please PM me if you do. Thanks |
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AR, USA
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Posted: 12/26/2017 12:34:56 PM EDT
[#11]
I'm building the trifecta MK12 Mod 0, Mod 1 and Mod H and need some help from a Leupold scope expert.....
I've found the Leupold Mark 4 MR/T 2.5-8x36 Illum TMR scope for sale. 2 are listed with the MPN/SKU below: 67925 112633 (this one is listed as a TS-30A2) The issue is that both show as the same 1/2 MOA turrets, both with illum TMR reticle....everything looks exactly the same on the scope specs but one of them is $30 more.... This isn't about the $30 bucks but more about the knowledge and understanding. It's driving me crazy and all Google searches, forums searches have come up dry..... Please help!
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Posted: 12/26/2017 2:13:07 PM EDT
[#12]
Quote HistoryOriginally Posted By 5pt56:
I'm building the trifecta MK12 Mod 0, Mod 1 and Mod H and need some help from a Leupold scope expert..... I've found the Leupold Mark 4 MR/T 2.5-8x36 Illum TMR scope for sale. 2 are listed with the MPN/SKU below: 67925 112633 (this one is listed as a TS-30A2) The issue is that both show as the same 1/2 MOA turrets, both with illum TMR reticle....everything looks exactly the same on the scope specs but one of them is $30 more.... This isn't about the $30 bucks but more about the knowledge and understanding. It's driving me crazy and all Google searches, forums searches have come up dry..... Please help! |
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AR, USA
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Posted: 12/26/2017 2:20:17 PM EDT
[#13]
Quote HistoryOriginally Posted By TinyCrumb: The 112633 has a lanyard on the battery cap, alignment marks on the tube and "Mk 12 Mod 1" marked elevation turret. 67925 has none of those features. 
So it would seem I want the 112633 for closest to spec purposes which oddly enough is $30 less than the other model. Lol |
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AR, USA
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Posted: 12/26/2017 2:28:24 PM EDT
[#14]
Onto the next question:
Need to glass my Mod 0 and Mod H...... I know page 1 and all specs but wanted to see opinions of those that have these optics already. I'm thinking of putting the Leupold LR/T 3.5-10x40 ilum Mil-dot on the Mod 0 and the 2.5-8x36 ilum TMR on the Mod H. Opinions if I should do this or just put the 2.5-8x36 ilum TMR on both? I can see benefits of keeping the optic the same. I know the 3.5-10x40 would be an early mod and the 2.5-8x36 would be the late mod so I'm not asking that. This is more of a shooter perspective opinion of the 2 optics and preference since both are technically spec. |
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Posted: 12/26/2017 2:43:21 PM EDT
[#15]
Quote HistoryOriginally Posted By 5pt56:
Onto the next question: Need to glass my Mod 0 and Mod H...... I know page 1 and all specs but wanted to see opinions of those that have these optics already. I'm thinking of putting the Leupold LR/T 3.5-10x40 ilum Mil-dot on the Mod 0 and the 2.5-8x36 ilum TMR on the Mod H. Opinions if I should do this or just put the 2.5-8x36 ilum TMR on both? I can see benefits of keeping the optic the same. I know the 3.5-10x40 would be an early mod and the 2.5-8x36 would be the late mod so I'm not asking that. This is more of a shooter perspective opinion of the 2 optics and preference since both are technically spec. |
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AR, USA
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Posted: 12/26/2017 2:46:53 PM EDT
[#16]
Quote HistoryOriginally Posted By Will816: I can't tell you how much more I enjoy the 3.5-10x than the 2.5-8x. When I built my Holland, I initially had the 2.5-8x but ended up going up to the 3.5-10x. It may not see like much, but having 20% higher magnification seemed to make a difference. 10x is enough to call my own shots on the range, I couldn't quite do that at 8x. So, if you have the choice and can still be "clone correct," get the 3.5-10x. Every time. |
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AR, USA
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Posted: 12/27/2017 11:10:37 AM EDT
[Last Edit: 5pt56]
[#17]
Quote HistoryOriginally Posted By Will816: I can't tell you how much more I enjoy the 3.5-10x than the 2.5-8x. When I built my Holland, I initially had the 2.5-8x but ended up going up to the 3.5-10x. It may not see like much, but having 20% higher magnification seemed to make a difference. 10x is enough to call my own shots on the range, I couldn't quite do that at 8x. So, if you have the choice and can still be "clone correct," get the 3.5-10x. Every time. I can get the illuminated version with M1's or the non-illum version with M3's.....decisions, decisions.... |
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Posted: 12/27/2017 11:25:41 AM EDT
[#18]
Quote HistoryOriginally Posted By 5pt56: Do you have M1 or M3 turrets on your 3.5-10? I can only find the M1 turret in stock and was thinking about changing the scope to M3 turrets but not certain I can with that model. I thought you could with all Leupold same class scope but don't remember for certain? I can get the illuminated version with M1's or the non-illum version with M3's.....decisions, decisions.... |
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AR, USA
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Posted: 12/27/2017 11:57:21 AM EDT
[#19]
Quote HistoryOriginally Posted By Will816:
I have M3’s. I recommend going that route. It doesn’t allow for particularly precise adjustments (I’m a high inch high at 100 yards, so with 1 MOA click value I can be a half inch high or a half inch low), but you can dial adjustments pretty darn fast. Perfect for the SPR. 
I just hate going with a non-illuminated scope. Thanks for the response and input too! |
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AR, USA
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Posted: 12/27/2017 12:06:55 PM EDT
[#20]
Quote HistoryOriginally Posted By 5pt56:
I agree and prefer to make quick adjustments to "precise" adjustments. I'm a rounds on target, not an F class shooter.
I just hate going with a non-illuminated scope. Thanks for the response and input too!
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Posted: 12/27/2017 12:12:55 PM EDT
[#21]
Hey gang, any of you guys use a Hog or Pig saddle on your Mod 0 or H with a gen 3 tube? Wondering how the lock up is considering the lock ring is wider than the tube. Does the saddle have enough meat to grab onto and make a secure connection? It looks like the Reaper Grip is adjustable for this issue while the Hog and Pig are not.
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DEU
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Posted: 12/27/2017 12:55:17 PM EDT
[#22]
Quote HistoryOriginally Posted By vnctmrn: Ayy, another European cloner! Like I posted above; I also have the DPMS barrel from brownells. Used some aluminum sheet to "extend" the thicker profile of the barrel down another inch after the gas block, and glued it on. Works fine so far! That friend of mine has a Mod 0, so it is supposed to sit on the gas block, right? No way we're ever gonna get the can, so at least if it looks right I'm good :D |
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DEU
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Posted: 12/27/2017 12:59:31 PM EDT
[Last Edit: Philipp]
[#23]
Quote HistoryOriginally Posted By Twitchy:
Is it an ITAR restriction or something similar imposed by Germany that prevents someone from just shipping it to you? It could just be that the shops are lazy and don't feel like filling out the extra paperwork, or it could be due to an ITAR or similar restriction that will land both shipper and receiver in legal trouble. I don't know the answer, but if there isn't a restriction, I'd bet one of us here wouldn't have problem shipping it over assuming you pick up the cost. But a Handguard is no problem at all, I just have to pay import VAT... If any of you would of course be so nice and it is no legal issue on your end, I'd gladly take that offer. (Ideally for three handguards. Two friends also want one :D ) If nothing comes up, I'll ask the two or three special shops here. One shop managed to get me all the Badger Ordnance Parts for my M40A3 Clone Build over here at not a too bad of a price, I'll ring them up in the new year. |
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Posted: 12/27/2017 2:52:01 PM EDT
[Last Edit: tamboi]
[#24]
Quote HistoryOriginally Posted By Will816:
Hey gang, any of you guys use a Hog or Pig saddle on your Mod 0 or H with a gen 3 tube? Wondering how the lock up is considering the lock ring is wider than the tube. Does the saddle have enough meat to grab onto and make a secure connection? It looks like the Reaper Grip is adjustable for this issue while the Hog and Pig are not. Attached File Attached File Attached File |
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Posted: 12/27/2017 4:19:18 PM EDT
[#25]
Quote HistoryOriginally Posted By tamboi: A few pics, don't have a problem with the pig saddle, don't use a saddle anymore with my bolt but I keep this for the other rifles. The saddle isn't even tightened down all the way on the forend but works fine. I don't like the reaper because it is offset from the top if the tripod, and it doesn't really adjust any better to grab the forend. https://www.AR15.Com/media/mediaFiles/28561/IMG_20171227_100202557~2-402951.JPG https://www.AR15.Com/media/mediaFiles/28561/IMG_20171227_100612587~2-402952.JPG https://www.AR15.Com/media/mediaFiles/28561/IMG_20171227_100620012~2-402955.JPG |
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PA, USA
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Posted: 12/27/2017 7:37:34 PM EDT
[Last Edit: droys86]
[#26]
Well I finally took my mk12 out...this is my second time shooting it (first was sighting in), and second time shooting any rifles past 50yds. The meat is a bcm upper, larue mbt 2s trigger, viper pst 6-24x50, and shooting CBC magtech 77gr stuff. This is definitely a sub moa setup. Keep in mind it was 25 degrees today, I shot this group glove less, and this was my second time ever shooting at 100yds.
The low shot was 100% me. I ended up rushing the shot because my hands were freezing and also muscled the gun. I have no doubt that if I had taken my time I have no doubt it would have been in line with the others. 
In other news, I also got one of Jim's faux silencers to hold me over until I get an aem5...looks awesome 
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Posted: 12/28/2017 12:24:21 PM EDT
[#27]
Does anybody know the size/thread pitch of the set screw used for the Allen Engineering collar? I need a replacement.
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Posted: 12/28/2017 12:28:13 PM EDT
[Last Edit: Engineer5]
[#28]
Quote HistoryOriginally Posted By NoahFN:
Does anybody know the size/thread pitch of the set screw used for the Allen Engineering collar? I need a replacement. Quote HistoryOriginally Posted By NoahFN:
Does anybody know the size/thread pitch of the set screw used for the Allen Engineering collar? I need a replacement. Here's a copy of my post on the subject from page 535 of this thread.... I know a few of you have had problems with the teeny, tiny set screws that OPS Inc. and Allen Engineering use to hold the collar to the barrel. I myself have stripped out one or two and I know others have as well as. Plus you can't get any torque using that teeny, tiny allen wrench either. There's a simple cure. I know a few have done this already but there might be a few out there that will need to in the future or maybe some of you will want to be pro-active and eliminate a problem down the road. Get down to your local HomeDepot and get yourself one of these Tap/Drill sets. Tap/Drill Combo Set You'll also need some 10-32x1/8 socket set screws. No one in my AO stocks 10-32x1/8 set screws. So I got on HomeDepot's website and ordered them. They were less than .80¢ for a bag of three. I ordered a few bags so I have extra if any one would like one or two screws. I'll send them to you for nothing. They ship to the store for free. It took about a week to get them in. 10-32x1/8 set screws Simply drill out the set screw hole in your collar with the bit from your kit and tap the new threads. When tapping the new threads go slow and back the tap out occasionally to remove material. The whole things costs me about $7.00 and took all of five minutes to do. It will save you a headache down the road. |
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NY, USA
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Posted: 12/28/2017 8:31:16 PM EDT
[#29]
So I just happened to have the correct flat/matte Uncle Mikes sling swivel on the sling for my duty M24, so I swapped it with the shiny one I had. Stupid little shit like that you guys point out and ends up fucking bothering me, so thanks a lot.
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Posted: 12/28/2017 8:49:22 PM EDT
[#30]
Quote HistoryOriginally Posted By Will816:
Hey gang, any of you guys use a Hog or Pig saddle on your Mod 0 or H with a gen 3 tube? Wondering how the lock up is considering the lock ring is wider than the tube. Does the saddle have enough meat to grab onto and make a secure connection? It looks like the Reaper Grip is adjustable for this issue while the Hog and Pig are not. |
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USA
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Posted: 12/28/2017 9:10:23 PM EDT
[#31]
Quote HistoryOriginally Posted By NoahFN:
Does anybody know the size/thread pitch of the set screw used for the Allen Engineering collar? I need a replacement. |
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CHE
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Posted: 12/29/2017 10:31:19 AM EDT
[#32]
Quote HistoryOriginally Posted By Davey_Sickboy:
So I just happened to have the correct flat/matte Uncle Mikes sling swivel on the sling for my duty M24, so I swapped it with the shiny one I had. Stupid little shit like that you guys point out and ends up fucking bothering me, so thanks a lot. https://i.imgur.com/71rTZ09.jpg Anyone her that could hook me up with sling and the uncle mikes adapter? |
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Posted: 12/29/2017 5:31:44 PM EDT
[#33]
mod 0 with a sex change underway to become a holland. Just waiting on barrel
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Posted: 12/29/2017 6:28:49 PM EDT
[#34]
Quote HistoryOriginally Posted By SDMF_Rebel:
mod 0 with a sex change underway to become a holland. Just waiting on barrel https://c1.staticflickr.com/5/4684/24511598587_ee049f2eb4_b.jpg 
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CA, USA
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Posted: 12/29/2017 6:41:23 PM EDT
[#35]
Quote HistoryOriginally Posted By SDMF_Rebel:
mod 0 with a sex change underway to become a holland. Just waiting on barrel https://c1.staticflickr.com/5/4684/24511598587_ee049f2eb4_b.jpg   Is it wrong for me to choose the Mod H over the Mod 0 anyday.. 
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Posted: 12/29/2017 6:57:18 PM EDT
[#36]
I Don't know what i was thinking painting the scope mount. I thought It'd look good, but i hate it. Oh well, brake cleaner to the rescue.
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Posted: 12/29/2017 9:22:08 PM EDT
[#37]
Quote HistoryOriginally Posted By SDMF_Rebel:
mod 0 with a sex change underway to become a holland. Just waiting on barrel https://c1.staticflickr.com/5/4684/24511598587_ee049f2eb4_b.jpg |
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Posted: 12/29/2017 10:15:32 PM EDT
[#38]
Quote HistoryOriginally Posted By tamboi: A few pics, don't have a problem with the pig saddle, don't use a saddle anymore with my bolt but I keep this for the other rifles. The saddle isn't even tightened down all the way on the forend but works fine. I don't like the reaper because it is offset from the top if the tripod, and it doesn't really adjust any better to grab the forend. https://www.AR15.Com/media/mediaFiles/28561/IMG_20171227_100202557~2-402951.JPG https://www.AR15.Com/media/mediaFiles/28561/IMG_20171227_100612587~2-402952.JPG https://www.AR15.Com/media/mediaFiles/28561/IMG_20171227_100620012~2-402955.JPG |
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Posted: 12/29/2017 10:17:43 PM EDT
[#39]
Quote HistoryOriginally Posted By Engineer5: Your best bet is to drill and tap it for a larger set screw. Those little ones are worthless and strip out way to easy. Here's a copy of my post on the subject from page 535 of this thread.... |
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GA, USA
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Posted: 12/30/2017 10:23:09 AM EDT
[#40]
Great way to end a pretty good year.
MK12 got dope out to 500. Actually managed to get a hit out at 700, despite the wind (which sucked). Scary easy to make hits at 300 from kneeling. Got hits with the offset Docter at 200 and 300. Played Twister/shot supported sitting with my non-dominant side with hits at 200-300. Wasn't sure I would end up keeping the NF SHV 3-10, but yesterday changed my mind. MK12 is love. MK12 is life. AEM5 is a freak of nature and probably the best purchase I have ever made. |
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Posted: 12/30/2017 11:14:14 AM EDT
[#41]
Quote HistoryOriginally Posted By Shooterman017:
Great way to end a pretty good year. MK12 got dope out to 500. Actually managed to get a hit out at 700, despite the wind (which sucked). Scary easy to make hits at 300 from kneeling. Got hits with the offset Docter at 200 and 300. Played Twister/shot supported sitting with my non-dominant side with hits at 200-300. Wasn't sure I would end up keeping the NF SHV 3-10, but yesterday changed my mind. MK12 is love. MK12 is life. AEM5 is a freak of nature and probably the best purchase I have ever made. 
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USA
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Posted: 12/30/2017 12:52:10 PM EDT
[#42]
Quote HistoryOriginally Posted By SDMF_Rebel:
mod 0 with a sex change underway to become a holland. Just waiting on barrel https://c1.staticflickr.com/5/4684/24511598587_ee049f2eb4_b.jpg |
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Posted: 12/30/2017 5:10:09 PM EDT
[Last Edit: Into_the_Void]
[#43]
So I apparently bought the wrong barrel and didn't get the ops profile?
Regardless, I think this is tits. I think I'll keep it. 
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Posted: 12/30/2017 5:24:21 PM EDT
[#44]
Holy shit. This thing is about to make me pull my hair out.
I had been complaining about mediocre accuracy from my Douglas barrel. I decided to buy a BA Stainless SPR barrel because of the accuracy guarantee, but the journals are out of spec and my gas block barely fit and the collar journal is about .010 oversize according to the drawings on the allen engineering site. I'm ready to just give up and send the entire thing to someone to have them deal with it. Leaning towards sending it to CLE and have them put a new Douglas barrel on and see if they can make it shoot. Who else would you recommend? |
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Posted: 12/30/2017 6:53:33 PM EDT
[#45]
Quote HistoryOriginally Posted By SDMF_Rebel:
So I apparently bought the wrong barrel and didn't get the ops profile? Regardless, I think this is tits. I think I'll keep it. https://c1.staticflickr.com/5/4682/39364722702_c0135ef154_b.jpg I say go for the right one. If you’ve built a clone, you’re not going to be happy |
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Posted: 12/30/2017 7:01:12 PM EDT
[#46]
Quote HistoryOriginally Posted By Will816:
What barrel did you get? I say go for the right one. If you’ve built a clone, you’re not going to be happy Quote HistoryOriginally Posted By Will816:
Originally Posted By SDMF_Rebel:
So I apparently bought the wrong barrel and didn't get the ops profile? Regardless, I think this is tits. I think I'll keep it. https://c1.staticflickr.com/5/4682/39364722702_c0135ef154_b.jpg I say go for the right one. If you’ve built a clone, you’re not going to be happy |
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Posted: 12/30/2017 7:34:42 PM EDT
[#47]
Quote HistoryOriginally Posted By NoahFN:
That paint looks badass, what colors did you use? Quote HistoryOriginally Posted By NoahFN:
Originally Posted By tamboi: A few pics, don't have a problem with the pig saddle, don't use a saddle anymore with my bolt but I keep this for the other rifles. The saddle isn't even tightened down all the way on the forend but works fine. I don't like the reaper because it is offset from the top if the tripod, and it doesn't really adjust any better to grab the forend. https://www.AR15.Com/media/mediaFiles/28561/IMG_20171227_100202557~2-402951.JPG https://www.AR15.Com/media/mediaFiles/28561/IMG_20171227_100612587~2-402952.JPG https://www.AR15.Com/media/mediaFiles/28561/IMG_20171227_100620012~2-402955.JPG |
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Posted: 12/30/2017 7:34:57 PM EDT
[#48]
As I keep vacillating between building a Mod0 and a Mod1, I want to know if using a teardrop forward assist on a Mod1 is completely verboten?
I’ll post updates pics of my MK12 build soon, I’m in the middle of painting the parts I already have. |
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Posted: 12/30/2017 8:01:42 PM EDT
[#49]
aaaaand correct barrel ordered. Gun looks nekked without the collar
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PA, USA
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Posted: 12/30/2017 8:16:38 PM EDT
[#50]
Quote HistoryOriginally Posted By SDMF_Rebel:
So I apparently bought the wrong barrel and didn't get the ops profile? Regardless, I think this is tits. I think I'll keep it. https://c1.staticflickr.com/5/4682/39364722702_c0135ef154_b.jpg i wish the lt104 wasnt shitty for me. it looked cool and made it more recce looking. |
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