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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  Attached File |
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Posted: 2/11/2024 9:42:22 PM EDT
[Last Edit: USMCSGT0331]
[#1]
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Posted: 2/11/2024 9:51:27 PM EDT
[Last Edit: USMCSGT0331]
[#2]
Originally Posted By thatARMSguy: Be still my heart... Wow that's gorgeous. I'm afraid to ask how long it took to track down all those Vero Beach parts Originally Posted By towerofpower94: While I ended up with a KAC rail from the last batch, I think my Mod 0 and Mod H will receive more range time. The PRI tube is just so iconic My previous posts has both my Mod 0 and Mod 1 rifles, to everyone reading this new page in the thread, please go back a page to see photos and information on each of these amazing clone builds! |
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Posted: 2/11/2024 9:57:49 PM EDT
[#3]
Quote HistoryOriginally Posted By USMCSGT0331: Here's both of my builds, which one do you guys prefer? I love both of these rifles, they turned out perfect and they look amazing together! It's difficult to say if I like one better than the other. What do you guys think about these clone builds? https://i.imgur.com/S5wj3EJ.jpeg https://i.imgur.com/pFimCuK.jpeg Mod O for me, but they’re both incredible. Every time you post a build (mk12, mk18, bolt guns, etc) I always think to myself, “How the fuck does he find these parts?!” |
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Posted: 2/11/2024 10:17:39 PM EDT
[#4]
Quote HistoryOriginally Posted By USMCSGT0331: Here's both of my builds, which one do you guys prefer? I love both of these rifles, they turned out perfect and they look amazing together! It's difficult to say if I like one better than the other. What do you guys think about these clone builds? https://i.imgur.com/S5wj3EJ.jpeg https://i.imgur.com/pFimCuK.jpeg While I usually jump at builds that correctly capture all the minute details of a late era mod 0, that mod 1 has a whole lot of cool/unique/obscure parts going on. Both are fantastic but the mod 1 takes the cake for me in this scenario. Nice job! |
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Posted: 2/11/2024 10:32:35 PM EDT
[#5]
Originally Posted By Subpar: Mod O for me, but they're both incredible. Every time you post a build (mk12, mk18, bolt guns, etc) I always think to myself, "How the fuck does he find these parts?!" Originally Posted By teamjawbox: While I usually jump at builds that correctly capture all the minute details of a late era mod 0, that mod 1 has a whole lot of cool/unique/obscure parts going on. Both are fantastic but the mod 1 takes the cake for me in this scenario. Nice job! I wouldn't have been able to complete either one of these clone builds without the help from many members of this thread! From parts to information and photos of original rifles, you guys are the best! |
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Posted: 2/12/2024 7:57:47 PM EDT
[Last Edit: Svensson]
[#6]
Quote HistoryOriginally Posted By USMCSGT0331: Here's both of my builds, which one do you guys prefer? I love both of these rifles, they turned out perfect and they look amazing together! It's difficult to say if I like one better than the other. What do you guys think about these clone builds? https://i.imgur.com/S5wj3EJ.jpeg https://i.imgur.com/pFimCuK.jpeg These builds are both fantastic! The gen 1 ergo grips are an awesome touch...they're nearly impossible to find. I have been wondering about the variations on the old Harris bipods. Does your 2006 example have flat or rounded rivets on the rear? Is it marked "Harris/USA" or just "Harris"? And what do the stamped indentations on the locks for the notched legs look like? Just noticed that variation on some of my Harris BRM-S bipods. New on the left (deeper indentations with short line on top), old on the right (shallower stamped lines). My other older Harris bipods are also like the one on the right.  Really dig the lower on your mod 1. OG magwell reweld? Some of the pics of your Mod 1 upper in progress actually got me into the Mk12 clone game. Amazing to see it completed. On another note, if anyone is looking for an Intl Mil Co Hydramatic lower for a build I may have a spare that I'll be posting on the EE. Some cool old SPR-era wingless A.R.M.S. stuff, too. |
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MN, USA
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Posted: 2/12/2024 8:25:40 PM EDT
[#7]
Quote HistoryOriginally Posted By kefir1775: Its more than just getting them on. Even after you do, they don't stay well (hence alot of pics of duct tape). The other issue is with mashing them on, the small rim that is on the body can get misshapen or stretched and is no longer able to allow the cap itself to snap into place. I called Leupold direct and they sent me out a pair of the original covers if you don't have them. They fit like a glove. Are Leupold branded scope caps clone correct? Were scope caps issued with the MK4 scope back in the early 2000's? Or are the Butler Creek the correct scope cap for cloning purposes? |
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GA, USA
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Posted: 2/12/2024 11:51:52 PM EDT
[#8]
Quote HistoryOriginally Posted By USMCSGT0331: Here's my Mk12 Mod 0, it's also built to crazy perfect specs like my Mod 1! This rifle has an original military used take-off barrel and it has the correct Mod 0 folding sight gas block (FSGB)! I've seen multiple crazy rare SPR FSGB's over the years, but this Mod 0 FSGB is the only legit actual Mod 0 FSGB I've ever seen. The Mod 0 FSGB has 4 set screws holding it to the original barrel, not the 2 long bolts like some of the older FSGB's had. The Mod 0 handguard is an original surplus Mod 0 piece, it was made around 2003 and has the correct size/location vent holes. The original Mod 0 handguard is extremely rare! You guys should recognize the original Leupold TS-30A2 scope, Arms 22M no lever stop rings and the Arms Tactical Ring Cap (TRC). The Arms #38 Swan Sleeve is the PEQ-2 type, which is correct for the military Mod 0's as well. https://i.imgur.com/Y7u8vCe.jpeg https://i.imgur.com/yiSWgoG.jpeg I also have a vintage Docter Optic red dot sight in a protective winged mount. The previous photos are the Mod 0 without the red dot, the 2 photos below have the red dot attached. Which way do you guys like better? https://i.imgur.com/zEi4y33.jpeg https://i.imgur.com/5iMZkXE.jpeg The GM Hydramatic receiver was cistom made for me, and the serial number on it actually matches the original government issued Mk12 Mod 0 serial number that's on my original Mod 0 case! The serial number range on the original case actually matches up to the GM Hydramatic receivers (not Colt or H&R or any other company), so I decided to do a reproduction GM Hydramatic receiver for my build using this serial number! This is probably a one-off pair, I've never seen another receiver with a serial number matching an original Mk12 case! https://i.imgur.com/wmsTcB9.jpeg https://i.imgur.com/NyjH4wR.jpeg https://i.imgur.com/QnjF1ao.jpeg I actually have this Mod 0 available for sale (minus the silencer), a friend is currently thinking about buying it from me. It's expensive, but it's probably the best clone Mk12 Mod 0 ever assembled! It's truly a labor of love, a ton of time/money/effort when into this build, and I hope all that effort can be seen in these photos! |
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CA, USA
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Posted: 2/13/2024 12:22:15 PM EDT
[#9]
anyone know what kind of markings were printed on the outside of a mk12 mod 1 deployment case? Im trying to make one but im limited on the details. I was going to use a stencil "MK12 MOD 1" or something like that. Any other ideas? Thanks!
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Posted: 2/13/2024 2:47:55 PM EDT
[Last Edit: Svensson]
[#10]
Quote HistoryOriginally Posted By moon_pigeon: anyone know what kind of markings were printed on the outside of a mk12 mod 1 deployment case? Im trying to make one but im limited on the details. I was going to use a stencil "MK12 MOD 1" or something like that. Any other ideas? Thanks! Here's my ~2004-2005 case. Earlier cases tend to have more hand-done markings.   Later USMC cases would generally have inventory stickers for the suppressor and the rifle. Sometimes serial numbers for the suppressor, lower, and scope would be etched/scratched into the plastic. Serial number for the lower was also occasionally marked on the case with a paint pen. If anyone has a line on a later case with the barcode inventory stickers I am still looking for one to complete my USMC Mod 1 clone. |
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Posted: 2/13/2024 2:51:35 PM EDT
[#11]
Quote HistoryOriginally Posted By moon_pigeon: anyone know what kind of markings were printed on the outside of a mk12 mod 1 deployment case? Im trying to make one but im limited on the details. I was going to use a stencil "MK12 MOD 1" or something like that. Any other ideas? Thanks!   |
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Posted: 2/13/2024 3:33:50 PM EDT
[#12]
Not the best screencap from a YouTube video my buddy just put up, but I used my Mod H in a night match this past Saturday.
It was overkill for the 5-50yd rifle targets, but I wanted to get more rounds on the gun and also see how the Somogear NGAL clone will hold up over more abuse.  Attached File |
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TX, USA
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Posted: 2/13/2024 8:36:49 PM EDT
[Last Edit: BravoSierra]
[#13]
Quote HistoryOriginally Posted By Svensson: Possibly, depending on what version you have. What broke on yours -- the lever? If you still have the parts it should be fixable... First version used a slotted screw. This would be around 1999-2000, mostly seen on M24s. Don't have one of those for reference. Later changed to a hex screw. Not sure exactly when, likely by early-2000s. This one is a 2006. https://i.imgur.com/YbMUIz0h.jpg Then changed to a tamper-resistant hex screw in 2007 (left). Right lever is from an EABCO S-Lever. https://i.imgur.com/em9Zrmch.jpg Old style/gen 1 (below) is a two-piece design -- separate lever and spacer. New design/gen 2 (post-2009) is a one-piece arrangement with a bent lever embossed with "KMW". Don't have one of those either but it should be the stock image on the KMW site. https://i.imgur.com/cmNJx9Dh.jpg IMO a gen 1 pod loc is worth fixing. Replacement levers are available.    I'd say it's a gen 1, but I don't see what makes it one. Not sure where to get just the lever? |
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Posted: 2/13/2024 10:59:05 PM EDT
[#14]
Originally Posted By Svensson: Here's my ~2004-2005 case. Earlier cases tend to have more hand-done markings. https://i.imgur.com/5zJPpIPh.jpg https://i.imgur.com/xNnT5yVh.jpg Later USMC cases would generally have inventory stickers for the suppressor and the rifle. Sometimes serial numbers for the suppressor, lower, and scope would be etched/scratched into the plastic. Serial number for the lower was also occasionally marked on the case with a paint pen. If anyone has a line on a later case with the barcode inventory stickers I am still looking for one to complete my USMC Mod 1 clone. Originally Posted By USMCSGT0331: Here's my original surplus Mk12 Mod 1 case: I think I am going to use a military font type stencil for the "MK12". Thanks. https://i.imgur.com/prCM4G8.jpeg https://i.imgur.com/VKTx1Eq.jpeg Right on. Thanks for the help. I might try to recreate this sticker with the inventory check list. Much appreciated! |
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PA, USA
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Posted: 2/15/2024 6:01:30 PM EDT
[#15]
just posted a couple ARMS sights in the EE
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Posted: 2/15/2024 11:54:57 PM EDT
[#16]
Where any lights used on the MK12 mod 0 or mod1? I can't seem to find any pictures with lights. I was thinking surefire M951. Anyone running a light on their setup?
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Posted: 2/16/2024 1:59:34 AM EDT
[#17]
Quote HistoryOriginally Posted By BravoSierra: https://i.imgur.com/MO86x3y.jpeg https://i.imgur.com/JB99KCI.jpeg https://i.imgur.com/36HX5z8.jpeg I'd say it's a gen 1, but I don't see what makes it one. Not sure where to get just the lever? Looks like it to me. I have a spare lever that I can send you. Send me a pm. |
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Posted: 2/16/2024 3:15:48 AM EDT
[#18]
Quote HistoryOriginally Posted By moon_pigeon: Where any lights used on the MK12 mod 0 or mod1? I can't seem to find any pictures with lights. I was thinking surefire M951. Anyone running a light on their setup? Grunts used them with the PEQ-16B. |
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Posted: 2/16/2024 10:08:41 AM EDT
[Last Edit: teamjawbox]
[#19]
Quote HistoryOriginally Posted By moon_pigeon: Where any lights used on the MK12 mod 0 or mod1? I can't seem to find any pictures with lights. I was thinking surefire M951. Anyone running a light on their setup? Here's an SU233 from CD pic drop on a mod 1.  Attached FileAnd you can see a Surefire on Shawn Ryan's mod 1 a couple pages back. Some other examples posted in the thread. Don't have page #'s handy. |
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Posted: 2/16/2024 12:27:53 PM EDT
[#20]
Been forever since I frequented this thread - still have my High Caliber Sales Mod 1 (still love it).
It's cool to see the Mod 1 still out there and with updated glass (even if this was only for a competition):  |
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Posted: 2/16/2024 12:37:29 PM EDT
[#21]
Side note...I'm in the process of making my Mod 1 clone a little more clone correct - starting with the lower.
Have had an A2 lower on there forever, but I'm thinking of buying an H&R M16A1 (from PSA) stripped lower and getting a surplus M16A1 stock to go with it. Obviously, the gray finish M16A1 lower is aesthetically more accurate to the 1960s, but I can't remember - were those refinished in black later on when paired with the Mk12? Or did they stay the original gray finish? Or both? |
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AZ, USA
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Posted: 2/16/2024 2:24:27 PM EDT
[#22]
Anyone have a spare long collar they want to get rid of?
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Posted: 2/16/2024 2:41:30 PM EDT
[#23]
Quote HistoryOriginally Posted By wayfaerer320: Side note...I'm in the process of making my Mod 1 clone a little more clone correct - starting with the lower. Have had an A2 lower on there forever, but I'm thinking of buying an H&R M16A1 (from PSA) stripped lower and getting a surplus M16A1 stock to go with it. Obviously, the gray finish M16A1 lower is aesthetically more accurate to the 1960s, but I can't remember - were those refinished in black later on when paired with the Mk12? Or did they stay the original gray finish? Or both? Some would be gray if the anodizing was still in good shape when it was put into storage. Others were refinished with some sort of flat epoxy paint at the arsenal level. H&Rs and GMs were generally darker gray, almost black. But everything varies. Even surface prep. I've seen some that were very rough and others with a super smooth finish. |
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Posted: 2/16/2024 7:14:25 PM EDT
[#24]
Quote HistoryOriginally Posted By wayfaerer320: Side note...I'm in the process of making my Mod 1 clone a little more clone correct - starting with the lower. Have had an A2 lower on there forever, but I'm thinking of buying an H&R M16A1 (from PSA) stripped lower and getting a surplus M16A1 stock to go with it. Obviously, the gray finish M16A1 lower is aesthetically more accurate to the 1960s, but I can't remember - were those refinished in black later on when paired with the Mk12? Or did they stay the original gray finish? Or both? Doesn't matter what color the lower is since you're going to paint it anyway. You ARE painting it, right? 
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Posted: 2/16/2024 10:20:11 PM EDT
[#25]
Quote HistoryOriginally Posted By LongTrang: Anyone have a spare long collar they want to get rid of? https://www.bauer-precision.com/allen-engineering-mk12-mod-1-spr-collar/ In stock as of this post. No idea about if bauer-precision is legit though. |
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Posted: 2/16/2024 10:22:40 PM EDT
[#26]
Quote HistoryOriginally Posted By ArpaioFan: https://www.bauer-precision.com/allen-engineering-mk12-mod-1-spr-collar/ In stock as of this post. No idea about if bauer-precision is legit though. Quote HistoryOriginally Posted By ArpaioFan: Originally Posted By LongTrang: Anyone have a spare long collar they want to get rid of? https://www.bauer-precision.com/allen-engineering-mk12-mod-1-spr-collar/ In stock as of this post. No idea about if bauer-precision is legit though. |
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FL, USA
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Posted: 2/16/2024 10:56:42 PM EDT
[#27]
Quote HistoryOriginally Posted By Svensson: Some would be gray if the anodizing was still in good shape when it was put into storage. Others were refinished with some sort of flat epoxy paint at the arsenal level. H&Rs and GMs were generally darker gray, almost black. But everything varies. Even surface prep. I've seen some that were very rough and others with a super smooth finish. |
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AZ, USA
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Posted: 2/17/2024 6:28:13 AM EDT
[#28]
Quote HistoryOriginally Posted By metalsaber: They are legit Quote HistoryOriginally Posted By metalsaber: Originally Posted By ArpaioFan: Originally Posted By LongTrang: Anyone have a spare long collar they want to get rid of? https://www.bauer-precision.com/allen-engineering-mk12-mod-1-spr-collar/ In stock as of this post. No idea about if bauer-precision is legit though. Sweet. I will check them out. Thanks! |
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GA, USA
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Posted: 2/18/2024 5:06:04 AM EDT
[#29]
It's not the correct model Swan Sleeve so I can't make a proper clone, but I was thinking of making a "civilian" Mk 12 with some more commonly available parts. Does that seem like a waste of money? Would it just be better to build a completely correct upper and just swap to a PEQ-2-3 when I find one? I'd still like to have a rifle for this to live on
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Posted: 2/18/2024 2:29:19 PM EDT
[#30]
H is for Heavy Handled Holland
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Posted: 2/18/2024 4:35:49 PM EDT
[Last Edit: SecretSquirell]
[#31]
Quote HistoryOriginally Posted By HaveBlue83: H is for Heavy Handled Holland https://i.postimg.cc/pTJ5KyCd/IMG-20240218-125659318-HDR-2.jpg  Needs to dry out so I can get mine out. |
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TN, USA
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Posted: 2/19/2024 9:38:45 PM EDT
[Last Edit: BurtSaun1049]
[#32]
Quote HistoryOriginally Posted By USMCSGT0331: Here's my Mk12 Mod 0, it's also built to crazy perfect specs like my Mod 1! This rifle has an original military used take-off barrel and it has the correct Mod 0 folding sight gas block (FSGB)! I've seen multiple crazy rare SPR FSGB's over the years, but this Mod 0 FSGB is the only legit actual Mod 0 FSGB I've ever seen. The Mod 0 FSGB has 4 set screws holding it to the original barrel, not the 2 long bolts like some of the older FSGB's had. The Mod 0 handguard is an original surplus Mod 0 piece, it was made around 2003 and has the correct size/location vent holes. The original Mod 0 handguard is extremely rare! You guys should recognize the original Leupold TS-30A2 scope, Arms 22M no lever stop rings and the Arms Tactical Ring Cap (TRC). The Arms #38 Swan Sleeve is the PEQ-2 type, which is correct for the military Mod 0's as well. https://i.imgur.com/Y7u8vCe.jpeg https://i.imgur.com/yiSWgoG.jpeg I also have a vintage Docter Optic red dot sight in a protective winged mount. The previous photos are the Mod 0 without the red dot, the 2 photos below have the red dot attached. Which way do you guys like better? https://i.imgur.com/zEi4y33.jpeg https://i.imgur.com/5iMZkXE.jpeg The GM Hydramatic receiver was cistom made for me, and the serial number on it actually matches the original government issued Mk12 Mod 0 serial number that's on my original Mod 0 case! The serial number range on the original case actually matches up to the GM Hydramatic receivers (not Colt or H&R or any other company), so I decided to do a reproduction GM Hydramatic receiver for my build using this serial number! This is probably a one-off pair, I've never seen another receiver with a serial number matching an original Mk12 case! https://i.imgur.com/wmsTcB9.jpeg https://i.imgur.com/NyjH4wR.jpeg https://i.imgur.com/QnjF1ao.jpeg I actually have this Mod 0 available for sale (minus the silencer), a friend is currently thinking about buying it from me. It's expensive, but it's probably the best clone Mk12 Mod 0 ever assembled! It's truly a labor of love, a ton of time/money/effort when into this build, and I hope all that effort can be seen in these photos! Do you know who did the anodizing on the lower after it was made? Thanks. @USMCSGT0331 |
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Posted: 2/19/2024 10:11:05 PM EDT
[#33]
Quote HistoryOriginally Posted By USMCSGT0331: Here's my Mk12 Mod 0, it's also built to crazy perfect specs like my Mod 1! This rifle has an original military used take-off barrel and it has the correct Mod 0 folding sight gas block (FSGB)! I've seen multiple crazy rare SPR FSGB's over the years, but this Mod 0 FSGB is the only legit actual Mod 0 FSGB I've ever seen. The Mod 0 FSGB has 4 set screws holding it to the original barrel, not the 2 long bolts like some of the older FSGB's had. The Mod 0 handguard is an original surplus Mod 0 piece, it was made around 2003 and has the correct size/location vent holes. The original Mod 0 handguard is extremely rare! You guys should recognize the original Leupold TS-30A2 scope, Arms 22M no lever stop rings and the Arms Tactical Ring Cap (TRC). The Arms #38 Swan Sleeve is the PEQ-2 type, which is correct for the military Mod 0's as well. https://i.imgur.com/Y7u8vCe.jpeg https://i.imgur.com/yiSWgoG.jpeg I also have a vintage Docter Optic red dot sight in a protective winged mount. The previous photos are the Mod 0 without the red dot, the 2 photos below have the red dot attached. Which way do you guys like better? https://i.imgur.com/zEi4y33.jpeg https://i.imgur.com/5iMZkXE.jpeg The GM Hydramatic receiver was cistom made for me, and the serial number on it actually matches the original government issued Mk12 Mod 0 serial number that's on my original Mod 0 case! The serial number range on the original case actually matches up to the GM Hydramatic receivers (not Colt or H&R or any other company), so I decided to do a reproduction GM Hydramatic receiver for my build using this serial number! This is probably a one-off pair, I've never seen another receiver with a serial number matching an original Mk12 case! https://i.imgur.com/wmsTcB9.jpeg https://i.imgur.com/NyjH4wR.jpeg https://i.imgur.com/QnjF1ao.jpeg I actually have this Mod 0 available for sale (minus the silencer), a friend is currently thinking about buying it from me. It's expensive, but it's probably the best clone Mk12 Mod 0 ever assembled! It's truly a labor of love, a ton of time/money/effort when into this build, and I hope all that effort can be seen in these photos! Definitely a beauty. The correct FSGB’s for a late mod 0 are definitely hard to find. That part eluded me the longest - though a period/spec correct CH was right there with it for me. The correct 3-9 TS30A2 is something I’ve missed out on a few times. They’ve been available occasionally but not at a cost I was willing to eat. Same with an original TS30. Would love to have one of each (one for my late mod 0 and one for my mod 1), but the days of being able to get either at sub-$2000 are likely gone. I applaud your work as always. Every build you’ve posted has been nothing short of superb and never ceases to amaze! Bravo good sir! |
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AZ, USA
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Posted: 2/19/2024 10:54:06 PM EDT
[Last Edit: LongTrang]
[#34]
Quote HistoryWho makes the dope card attached to the side of the mount in the middle picture? ETA: Or is for an electronic device? |
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AZ, USA
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Posted: 2/20/2024 12:59:58 AM EDT
[#35]
Quote HistoryOriginally Posted By LongTrang: Who makes the dope card attached to the side of the mount in the middle picture? ETA: Or is for an electronic device? Looks like a Hawk Hill RMD |
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AZ, USA
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Posted: 2/20/2024 7:48:59 PM EDT
[#36]
Quote HistoryOriginally Posted By RadOP: Looks like a Hawk Hill RMD Thanks. Looked them up, sure does look like a match |
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PA, USA
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Posted: 2/21/2024 5:47:56 PM EDT
[#37]
Just got my ARMS # 22s, anyone have a TRC/TRR for sale?
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Posted: 2/21/2024 11:50:46 PM EDT
[#38]
Finally took the plunge into getting an AEM 5. Managed to find a Sparks NV AEM5 in stock at adco. Wish me luck, now off to file paperwork and play the waiting game. I’m stoked this will be my first suppressor purchase
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Posted: 2/23/2024 4:48:56 AM EDT
[#39]
Quote HistoryOriginally Posted By HotLead: Just got my ARMS # 22s, anyone have a TRC/TRR for sale? I'm on backorder for some going on about two weeks so we shall see as these are now the new unobtanium. I ordered an #32 ARMS Harris mount and it shipped 4 days later. Mounts Plus it's a gamble........... |
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Posted: 2/23/2024 10:03:29 AM EDT
[#40]
Quote HistoryOriginally Posted By Fives: Finally took the plunge into getting an AEM 5. Managed to find a Sparks NV AEM5 in stock at adco. Wish me luck, now off to file paperwork and play the waiting game. I'm stoked this will be my first suppressor purchase The AEM5 was my first suppressor too - you'll love it. |
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WI, USA
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Posted: 2/23/2024 10:06:18 AM EDT
[#41]
Quote HistoryOriginally Posted By AWHAILYEAH: I'm on backorder for some going on about two weeks so we shall see as these are now the new unobtanium. I ordered an #32 ARMS Harris mount and it shipped 4 days later. Mounts Plus it's a gamble........... Wild, mine has been on backorder for 6ish months with MPS. |
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MN, USA
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Posted: 2/23/2024 5:21:05 PM EDT
[#42]
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PA, USA
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Posted: 2/23/2024 6:05:35 PM EDT
[#43]
Quote HistoryOriginally Posted By Fives: Finally took the plunge into getting an AEM 5. Managed to find a Sparks NV AEM5 in stock at adco. Wish me luck, now off to file paperwork and play the waiting game. I’m stoked this will be my first suppressor purchase Hopefully you get lucky and get approved in less than a month like my nephew just did...20 days for a F4! |
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Posted: 2/23/2024 6:42:08 PM EDT
[#44]
Quote HistoryOriginally Posted By BOONEA: https://i.imgur.com/mla5vQW.jpg It goes here, ya Jabrone! @Bonnea |
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Posted: 2/23/2024 7:10:29 PM EDT
[#45]
Quote HistoryQuote HistoryOriginally Posted By HaveBlue83: Originally Posted By BOONEA: https://i.imgur.com/mla5vQW.jpg It goes here, ya Jabrone! @Bonnea Shits legit tho....................... |
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TX, USA
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Posted: 2/24/2024 4:14:41 AM EDT
[#46]
Now it's just the waiting game.
 
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Posted: 2/24/2024 6:07:10 PM EDT
[#47]
NSW Block II with Allen NSW Collar/Brake in 6mm ARC & CLE Douglas 15.1" bout to head to RAW for P/W
MK12 Mod Juan pretty much finished except for some tweaks......... PRI 18" Douglas H&R A1 Lower w H&R vietnam era A1 Grip/Stock MK12 Mod H waiting on @HaveBlue83 to unfuck my 22m's LS's so the M110 FDE MK4 can be mounted back up sport'n Noveske H Barrel (@Ankratz Coated) I fucking suck ass at pics I'll do better once they're all wrapped up.................     Forge Markings because everybody new always wants to know.......... Mod 1  Mod H  Block II Recce (I had to burn that Brass Aluminum Upper somewhere so why not on a bullshit fun build)  Coming Soon (Paints gotta dry and it's gotta go see JT for a P/W on the CLE Douglas 15.1" NSW RECCE   Of course all done in the Lords colors.......................... 
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Posted: 2/24/2024 7:39:19 PM EDT
[Last Edit: AWHAILYEAH]
[#48]
Question on turrets for this scope and rifle which is most appropriate? Scope is Leupold MK4 3-9x36 Mildot w/ M3 turrets model# 57055 Manufactured 2004......
Came with this one:  Called Leupold and got this one:  This the turret cap on my MK4 LR/T 3.5-10x40 Illum TMR w/ M2 turrets model# 67940 aka: M110 FDE MK4 Manufactured in 2006  This is what I was after but it may be incorrect for my model MK4?? 
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Posted: 2/24/2024 8:10:47 PM EDT
[Last Edit: teamjawbox]
[#49]
Quote HistoryOriginally Posted By AWHAILYEAH: Question on turrets for this scope and rifle which is most appropriate? Scope is Leupold MK4 3-9x36 Mildot w/ M3 turrets model# 57055 Manufactured 2004...... Came with this one: https://i.imgur.com/93mZjKn.jpg Called Leupold and got this one: https://i.imgur.com/sdU5KgR.jpg This the turret cap on my MK4 LR/T 3.5-10x40 Illum TMR w/ M2 turrets model# 67940 aka: M110 FDE MK4 Manufactured in 2006 https://i.imgur.com/TV7i78t.jpg This is what I was after but it may be incorrect for my model MK4?? https://i.imgur.com/OjKuDej.jpg .223 62gr is what I recall seeing on the old 3-9’s. Though there’s been a ton of different ones spotted especially on the 3.5-10’s. Out of the two you showed I’d go with 5.56 77gr. ETA: pic of issued 3-9 M3 from 2004 era SH pic dump  Attached File |
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MI, USA
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Posted: 2/24/2024 9:49:58 PM EDT
[#50]
Quote HistoryOriginally Posted By HotLead: Just got my ARMS # 22s, anyone have a TRC/TRR for sale? Looks like MSP just got a few in stock. "7 available for immediate delivery" at the time of this post. |
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