User Panel
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. View Quote 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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MACV-SOG nut.
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Originally Posted By Davey_Sickboy:
Fuck I'll take the corn fields! I got buildings in the way out here! Never thought I would be able to say this, but what comes after MK12...... https://i.imgur.com/QwgxCs2.jpg View Quote If you haven't tried uspsa open class that's a rush, but say goodbye to money if you do. The clone game is not the most expensive game around as it turns out. |
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Originally Posted By 5pt56: Okay thanks so much for the info! So it seems that either way someone can't be clone correct to the exacting specs. So seems the decision is to determine which would be closer to clone correct, having a noveske barrel and a contoured collar or a Douglas, BA, or CLE barrel with the correct collar? I may opt for the collar since I've already plunged into the Noveske barrel price. View Quote BA barrels are not the correct profile and in 1/8 only. for a barrel thats getting a 22oz can on the end, it willl matter. ive got a WOA Barrel of the correct profile. The can make them to order last i heard. some have said they made the ops cut 2.3 not 2.4" back, but i have a lathe and thats a 10min setup and cut back if i need to massage it. |
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Originally Posted By 5pt56: What's it under on ebay? Can't seem to find the scope you have listed? View Quote |
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PSALMS 144-1 Blessed be the Lord my strength, which teacheth my hands to warre, and my fingers to fight
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View Quote I really need those rings without the stop humps. lol |
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Originally Posted By HaveBlue83:
not all mod H were noveske barrelled. some have unmarked barrels. verified. BA barrels are not the correct profile and in 1/8 only. for a barrel thats getting a 22oz can on the end, it willl matter. ive got a WOA Barrel of the correct profile. The can make them to order last i heard. some have said they made the ops cut 2.3 not 2.4" back, but i have a lathe and thats a 10min setup and cut back if i need to massage it. View Quote And idea what the history is behind the unmarked barrels? gov't contract co X or turned down barrel blanks? I'm starting to think everyone is a bad influence on me because I just keep buying and buying and buying...... |
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Originally Posted By 5pt56: I tend to agree with you on the 22oz can on the end of those barrels. Seems I'm collecting barrels now. lol. I went ahead and bought a BA 16". Bought it from Granite Ridge Outfitters for $134.55 delivered. Can't go wrong with that even if I just use it for something else. But to your point, I have a WOA that's an 18" and it's a tack driver. May look at that them for the 16". And idea what the history is behind the unmarked barrels? gov't contract co X or turned down barrel blanks? I'm starting to think everyone is a bad influence on me because I just keep buying and buying and buying...... View Quote John only made a select amount of barrels for the original order. Uppers sent out after that original very likely had barrels from PRI, they have a few with the correct profile. |
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The next time I do a Holland upper, I may go with the Bison Armory one and give them a try. The heavier SPR style profile as mentioned, $200 and add bead blast for $20, 1:7 twist. I've heard good things about them here and that was with the Recon profile that's closer to the BA TacGov.
Bison 16" SPR tube And yes, you read that right. Hollandless for now but I plan to do it "right" when the time comes again, FDE handguard and FDE Duracoated upper with the right forge marks, Bison barrel bead blasted. Goal is 1:1 of the Holland carried by the gentleman from KRG Ops. |
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Originally Posted By lancecriminal86:
The next time I do a Holland upper, I may go with the Bison Armory one and give them a try. The heavier SPR style profile as mentioned, $200 and add bead blast for $20, 1:7 twist. I've heard good things about them here and that was with the Recon profile that's closer to the BA TacGov. Bison 16" SPR tube And yes, you read that right. Hollandless for now but I plan to do it "right" when the time comes again, FDE handguard and FDE Duracoated upper with the right forge marks, Bison barrel bead blasted. Goal is 1:1 of the Holland carried by the gentleman from KRG Ops. View Quote |
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Originally Posted By 5pt56:
Please confirm for me " the right forge marks"? View Quote View All Quotes View All Quotes Originally Posted By 5pt56:
Originally Posted By lancecriminal86:
The next time I do a Holland upper, I may go with the Bison Armory one and give them a try. The heavier SPR style profile as mentioned, $200 and add bead blast for $20, 1:7 twist. I've heard good things about them here and that was with the Recon profile that's closer to the BA TacGov. Bison 16" SPR tube And yes, you read that right. Hollandless for now but I plan to do it "right" when the time comes again, FDE handguard and FDE Duracoated upper with the right forge marks, Bison barrel bead blasted. Goal is 1:1 of the Holland carried by the gentleman from KRG Ops. I'm copying the top upper here: A plain Keyhole, or maybe Square forge mark should be fine. |
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Originally Posted By lancecriminal86: Well for the upper I was doing, it was just a Keyhole/Cerro, no Colt "C" or other stamps. Basically the Hollands should mainly have used new contract stripped uppers, though some may have re-used the SPR uppers if they were still serviceable as evidenced by upper/lower paint matching but the handguard being FDE Duracoat. I'm copying the top upper here: https://i.imgur.com/SIcp9uv.jpg A plain Keyhole, or maybe Square forge mark should be fine. View Quote |
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Don't come back to Afghanistan. -Taliban, 5/31/14
http://www.flickr.com/photos/46381179@N04/ |
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Originally Posted By lancecriminal86: Well for the upper I was doing, it was just a Keyhole/Cerro, no Colt "C" or other stamps. Basically the Hollands should mainly have used new contract stripped uppers, though some may have re-used the SPR uppers if they were still serviceable as evidenced by upper/lower paint matching but the handguard being FDE Duracoat. I'm copying the top upper here: https://i.imgur.com/SIcp9uv.jpg A plain Keyhole, or maybe Square forge mark should be fine. View Quote |
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Originally Posted By 5pt56:
OKay, good to know! I was misinformed that the upper receiver was also "C" stamped. Good thing I have the keyhole upper without any other markings. Finally something I don't have to buy. View Quote View All Quotes View All Quotes Originally Posted By 5pt56:
Originally Posted By lancecriminal86: Well for the upper I was doing, it was just a Keyhole/Cerro, no Colt "C" or other stamps. Basically the Hollands should mainly have used new contract stripped uppers, though some may have re-used the SPR uppers if they were still serviceable as evidenced by upper/lower paint matching but the handguard being FDE Duracoat. I'm copying the top upper here: https://i.imgur.com/SIcp9uv.jpg A plain Keyhole, or maybe Square forge mark should be fine. There's no one pattern with them, some had FDE handguards and upper, some were FDE handguard, black upper, some were black/black, some had rattlecan on the upper but not the handguard, it's all a mix. |
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Originally Posted By 5pt56:
OKay, good to know! I was misinformed that the upper receiver was also "C" stamped. Good thing I have the keyhole upper without any other markings. Finally something I don't have to buy. View Quote Check out page 1 of the holland thread also |
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Originally Posted By chenault: Lance is right. Basically, they took the old spr (MK12 mod 0) rifles and took what they could use and trashed the rest. In many cases new stripped uppers were used and they aren't marked with the c. One of just several reasons the holland is one of the cheaper spr clones to build. Check out page 1 of the holland thread also View Quote |
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Originally Posted By 5pt56: Great to know and I had no idea about the Holland thread! After reading 4 of 43, I appreciate everyone answering my questions. Seems some of it was covered there! I'll try and get through the other 39 pages tonight. View Quote |
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NRA Life Member USN Retired |
Sorry for the noob question, could someone point me in the right direction on deciding on a rear BUIS? I’m using the peq 2 rail from PRI and the clearance is minimal as seen in the pictures below. Thanks in advance to any replies
Attached File Attached File |
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Originally Posted By loudxpack:
Sorry for the noob question, could someone point me in the right direction on deciding on a rear BUIS? I’m using the peq 2 rail from PRI and the clearance is minimal as seen in the pictures below. Thanks in advance to any replies https://www.AR15.Com/media/mediaFiles/472230/C19890F9-77AF-4C52-BDB9-64B9165A0852-409256.JPG https://www.AR15.Com/media/mediaFiles/472230/33D47DFF-6FC6-4134-AFB8-5AA9EC2E63AB-409257.JPG View Quote |
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Squire
Without blood, it doesn't count! I survived ARFbortion2016 and all I got was this stupid sigline |
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Strength Determination Merciless Forever
PA, USA
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Making moves to buy the can. It will be my first NFA buy. NFA has always intimidated me, dunno why. I can only imagine the floodgates will now be opening.
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http://www.amazon.com/Gentle-Propositions-J-S-Economos/dp/0615997635
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Strength Determination Merciless Forever
PA, USA
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Originally Posted By RTUtah:
Easiest money you'll ever spend. Most places make the process turnkey. Congrats. View Quote |
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Originally Posted By SDMF_Rebel: Up until very recently most places made it seem like a dark art. It didn't help that I know no one IRL with nfa toys. NFA dealers around me were jerkoffs (i.e. the only one for the longest time was raided by the ATF, then had a SWAT standoff at his home). Times have changed, and/or I stopped being a bitch View Quote |
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http://www.amazon.com/Gentle-Propositions-J-S-Economos/dp/0615997635
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Originally Posted By Will816:
I'm guessing you guys are having a winter like us in ID. Where the hell is the snow? View Quote |
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Is the mk12 18" barrel and rifle gas system a reliable system if run without a suppressor? I would assume that since the dwell time is shorter, that it may be a little finicky unless either suppressed or the gas port is larger. Ive been interested in these for awhile, but not so sure I would be getting a suppressor and reliability is #1 followed by accuracy. Thanks in advance for any feedback.
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Originally Posted By ckopp636:
Is the mk12 18" barrel and rifle gas system a reliable system if run without a suppressor? I would assume that since the dwell time is shorter, that it may be a little finicky unless either suppressed or the gas port is larger. Ive been interested in these for awhile, but not so sure I would be getting a suppressor and reliability is #1 followed by accuracy. Thanks in advance for any feedback. View Quote |
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Halleluja, I'm getting the Mod 1 Handguard and at not too bad of a price
All the rest is no problem at all, luckily one of my mates has someone who does imports at a very good price on speed-dial. This year is starting well |
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Originally Posted By Philipp:
Halleluja, I'm getting the Mod 1 Handguard and at not too bad of a price All the rest is no problem at all, luckily one of my mates has someone who does imports at a very good price on speed-dial. This year is starting well View Quote |
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Don't come back to Afghanistan. -Taliban, 5/31/14
http://www.flickr.com/photos/46381179@N04/ |
Originally Posted By Will816:
Nice, make sure to get pics up as it's coming along View Quote Handguard, DD MK12 Gas Block, KAC Rear and Front sight and the Arms #32 are coming first, all the other stuff I can order locally, gunsmith has recievers, a DPMS MK12 barrel, BCG and all the small parts, plan is going well so far :D |
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Strength Determination Merciless Forever
PA, USA
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Grats!
There's no way a sports shooter will ever get a surpressor over here... |
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Originally Posted By SDMF_Rebel:
I did a thing. It will be my first can. https://www.AR15.Com/media/mediaFiles/220444/suppressor-410676.JPG View Quote |
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http://www.amazon.com/Gentle-Propositions-J-S-Economos/dp/0615997635
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http://www.amazon.com/Gentle-Propositions-J-S-Economos/dp/0615997635
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Originally Posted By SDMF_Rebel:
I did a thing. It will be my first can. https://www.AR15.Com/media/mediaFiles/220444/suppressor-410676.JPG View Quote |
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Originally Posted By SDMF_Rebel:
I did a thing. It will be my first can. https://www.AR15.Com/media/mediaFiles/220444/suppressor-410676.JPG View Quote |
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Don't come back to Afghanistan. -Taliban, 5/31/14
http://www.flickr.com/photos/46381179@N04/ |
Originally Posted By lancecriminal86: If one was rebuilt on an SPR upper, then it possibly would have a Colt but it would be an "AF" forge mark. There's no one pattern with them, some had FDE handguards and upper, some were FDE handguard, black upper, some were black/black, some had rattlecan on the upper but not the handguard, it's all a mix. View Quote also, dont forget the Diemaco for Anchor Harvey upper. also an option :) |
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Originally Posted By HaveBlue83:
those 2 ACS stocked Mod H represent my basis for my clone. i had it like the other one with the FDE magpul MVG on it and SOCOM stock for awhile, but the ACS is lovely. i had a larue lt104 on mine for 1 day as i was wanting to clone to top rifle more closely, but 3" groups arent my style so i had to go back to RECCE rail. There are a lot of options for mod H. its not much cheaper tho...im at $3,400 in the pelican and can that is about $250 cheaper than an AEM5 lol also, dont forget the Diemaco for Anchor Harvey upper. also an option :) View Quote |
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Don't come back to Afghanistan. -Taliban, 5/31/14
http://www.flickr.com/photos/46381179@N04/ |
Originally Posted By SDMF_Rebel:
I did a thing. It will be my first can. https://www.AR15.Com/media/mediaFiles/220444/suppressor-410676.JPG View Quote |
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Originally Posted By RTUtah:
Niiice! These cans are so underrated, it's not even funny. View Quote View All Quotes View All Quotes Originally Posted By RTUtah:
Originally Posted By SDMF_Rebel:
I did a thing. It will be my first can. https://www.AR15.Com/media/mediaFiles/220444/suppressor-410676.JPG |
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AEM5 is my favorite centerfire rifle can I own. Todd Magee of Dead Air posted the other day in the silencer forum that it is the quietest 5.56 can he's ever tested at both muzzle and ear. Pretty solid endorsement from another manufacturer.
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Strength Determination Merciless Forever
PA, USA
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Originally Posted By sbye:
Bought mine from Presample Depot too. ATF cashed my check on 12/12/17. I hope going the trust route wasn't too much of a mistake. Hopefully they get the wait times down. View Quote Edit - kind of killed the budget for buying an MRE when they become available |
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Originally Posted By ckopp636:
Is the mk12 18" barrel and rifle gas system a reliable system if run without a suppressor? I would assume that since the dwell time is shorter, that it may be a little finicky unless either sucppressed or the gas port is larger. Ive been interested in these for awhile, but not so sure I would be getting a suppressor and reliability is #1 followed by accuracy. Thanks in advance for any feedback. View Quote |
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Originally Posted By Outridher:
AEM5 is my favorite centerfire rifle can I own. Todd Magee of Dead Air posted the other day in the silencer forum that it is the quietest 5.56 can he's ever tested at both muzzle and ear. Pretty solid endorsement from another manufacturer. View Quote |
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Originally Posted By tamboi: Funny thing is I've never had a problem running the rifle suppressed or unsuppressed with actual MK262 or my own handloads. I've read so many postings by people over the years with regards other upper combos that they needed to have an adjustable gas block, no sure the reason why, when the MK12 gets the job done as it was originally built. View Quote |
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Originally Posted By Will816:
Why did the LT104 impact your groups? View Quote loving my recce and NF combo tho :). the issues immediately stopped at the range when i went back to that setup. |
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