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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. 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 jonnychimpo:
So who has Allen cans in stock? Trying to get this one in before July and the 41F nonsense. View Quote I got mine from www.tarheelstatefirearms.com Scott the owner is a stand up guy and great to deal with. I have been to his store and his wife engraved my sbr for me as well. |
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Originally Posted By dangerdan: I think I may go A2 and ditch my Ergo. It's not very ergonomic for me. View Quote View All Quotes View All Quotes Originally Posted By dangerdan: Originally Posted By wayfaerer320: I think I may go Ergo and ditch my A1 grip. I think I may go A2 and ditch my Ergo. It's not very ergonomic for me. I heart Dan!!!!! #a2masterrace haha NLS (CORRECT FOR CLONES): LS (earlier small wall): LS (later, current full wall): |
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Please excuse my ways. Iraq Veteran. 45B.
Originally Posted By DangerJ: Pentagon should troll back, hit a few camps with drone strikes, then tag the coordinates in a post with #LOL |
Originally Posted By Zakk101abn:
http://i36.photobucket.com/albums/e21/zakk101abn/Mobile%20Uploads/image_zpslbyfzmqa.jpeg http://youtu.be/sxIziDrd2Pc View Quote Want. |
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Originally Posted By Hunterex: Originally Posted By Zakk101abn: http://i36.photobucket.com/albums/e21/zakk101abn/Mobile%20Uploads/image_zpslbyfzmqa.jpeg http://youtu.be/sxIziDrd2Pc Want. |
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[quote]Originally Posted By Movistar:
Shooting unsuppressed is for the birds and criminals[/quote] |
Originally Posted By Zakk101abn: Not gonna lie, purdy happy with it. View Quote View All Quotes View All Quotes Originally Posted By Zakk101abn: Originally Posted By Hunterex: Originally Posted By Zakk101abn: http://i36.photobucket.com/albums/e21/zakk101abn/Mobile%20Uploads/image_zpslbyfzmqa.jpeg http://youtu.be/sxIziDrd2Pc Want. Like. |
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http://www.amazon.com/Gentle-Propositions-J-S-Economos/dp/0615997635
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Originally Posted By HaveBlue83:
These things arrived today. Looks like just a simple endmill and a 45deg cutter and i will have NLS :) <a href="http://postimage.org/" target="_blank">http://s11.postimg.org/804mvrsw3/20160307_170403.jpg</a> View Quote Can't wait to see the result |
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Did they use black or FDE KAC front flip up sights on the MK12 Mod 1?
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Originally Posted By jonnychimpo:
So who has Allen cans in stock? Trying to get this one in before July and the 41F nonsense. View Quote I ran across this listing today on Gun Broker, not my listing but thought you might be interested. |
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Originally Posted By mxdgood84:
I know most didn't sport irons but I could only go so long without them. Especially when you can turn 3 ARMS levers in about 10 seconds and have a sub-8lb 16" rifle (without the can). <a href="https://flic.kr/p/DZWekq" target="_blank">https://farm2.staticflickr.com/1446/24940821594_e9d42b3ca8_h.jpg</a> <a href="https://flic.kr/p/DZWwp5" target="_blank">https://farm2.staticflickr.com/1535/24940878994_9742461fc9_h.jpg</a> View Quote What rail is that you have on the top? |
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Originally Posted By trustone099:
What rail is that you have on the top? View Quote View All Quotes View All Quotes Originally Posted By trustone099:
Originally Posted By mxdgood84:
I know most didn't sport irons but I could only go so long without them. Especially when you can turn 3 ARMS levers in about 10 seconds and have a sub-8lb 16" rifle (without the can). <a href="https://flic.kr/p/DZWekq" target="_blank">https://farm2.staticflickr.com/1446/24940821594_e9d42b3ca8_h.jpg</a> <a href="https://flic.kr/p/DZWwp5" target="_blank">https://farm2.staticflickr.com/1535/24940878994_9742461fc9_h.jpg</a> What rail is that you have on the top? That's a PRI recce rail. |
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-Nemo me impune lacesset.
-Beware the fury of a patient man. -Thousands and thousands of laws....All for just ten commandments. -"alot" is not a word. |
Originally Posted By spermgewehr44:
Originally Posted By Johnson184:
Did they use black or FDE KAC front flip up sights on the MK12 Mod 1? blk Thanks for the info. Did they spray paint their sights though? |
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I just picked up something nice on my lunch break.
Pics when I get home. |
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"Not proud of everything I've done, but at least you know I did it well."
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How much flak would I catch if I made my own suppressor for my up coming mk12 mod1? It would utilize the ops brake and collar!
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Originally Posted By BoltactionJockey:
How much flak would I catch if I made my own suppressor for my up coming mk12 mod1? It would utilize the ops brake and collar! View Quote If it looks very similar to the Ops can, it would be pretty cool. Otherwise, seems like a lot of effort to avoid buying a can that's a pretty phenomenal deal for what you get. |
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"When a man knows he is to be hanged in a fortnight, it concentrates his mind wonderfully." - Dr. Samuel Johnson
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[quote]Originally Posted By Movistar:
Shooting unsuppressed is for the birds and criminals[/quote] |
Originally Posted By BurtSaun1049:
If it looks very similar to the Ops can, it would be pretty cool. Otherwise, seems like a lot of effort to avoid buying a can that's a pretty phenomenal deal for what you get. View Quote View All Quotes View All Quotes Originally Posted By BurtSaun1049:
Originally Posted By BoltactionJockey:
How much flak would I catch if I made my own suppressor for my up coming mk12 mod1? It would utilize the ops brake and collar! If it looks very similar to the Ops can, it would be pretty cool. Otherwise, seems like a lot of effort to avoid buying a can that's a pretty phenomenal deal for what you get. Building it would save me a long form 4 wait, by doing a form 1. A lot cheaper also, I have access to all kinds of material working for a metals recycler and have a lot of machine shops I service. |
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Originally Posted By BoltactionJockey: Building it would save me a long form 4 wait, by doing a form 1. A lot cheaper also, I have access to all kinds of material working for a metals recycler and have a lot of machine shops I service. View Quote View All Quotes View All Quotes Originally Posted By BoltactionJockey: Originally Posted By BurtSaun1049: Originally Posted By BoltactionJockey: How much flak would I catch if I made my own suppressor for my up coming mk12 mod1? It would utilize the ops brake and collar! If it looks very similar to the Ops can, it would be pretty cool. Otherwise, seems like a lot of effort to avoid buying a can that's a pretty phenomenal deal for what you get. Building it would save me a long form 4 wait, by doing a form 1. A lot cheaper also, I have access to all kinds of material working for a metals recycler and have a lot of machine shops I service. Patent infringement? Not sure how all that works. If it was me, I wouldn't be that eager to reinvent the wheel but it would be a cool project for sure. |
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http://www.amazon.com/Gentle-Propositions-J-S-Economos/dp/0615997635
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Patent infringement? Not sure how all that works. If it was me, I wouldn't be that eager to reinvent the wheel but it would be a cool project for sure.
Shouldn't be a patent problem unless I copied most of it and tried to sell for profit as my own design! Only similarities would be diameter, length and using their brake/collar. Just an idea, been pondering building my own suppressor for a few months now. |
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Originally Posted By Great_Balls_of_Fire:
Eye box/FOV - Eye box checked out fine and I have had no issues bringing the gun to cheek quickly. I could see how it could be a little jicky for somebody new to shooting but it passes muster. FOV at 10x magnification is "meh." I find myself running this scope at 2.5x more than 10x. View Quote View All Quotes View All Quotes Originally Posted By Great_Balls_of_Fire:
Eye box/FOV - Eye box checked out fine and I have had no issues bringing the gun to cheek quickly. I could see how it could be a little jicky for somebody new to shooting but it passes muster. FOV at 10x magnification is "meh." I find myself running this scope at 2.5x more than 10x. Hand-in-hand with the eye box/FOV is the 2.4 mm pupil @ 10x mag. On a bright day, the reduction in light entering your eye is VERY obvious as you dial it up from ~5x to 10x. Originally Posted By dangerdan:
I haven't seen any. But which would you rather want? x32 lets more light in and is alot better at 10x True, but only the x24 (or TS-30A2) allows you to mount a PEQ-2 on a Mod 0 swan sleeve recess. ;-) |
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Originally Posted By mrsaturn7085: Hand-in-hand with the eye box/FOV is the 2.4 mm pupil @ 10x mag. On a bright day, the reduction in light entering your eye is VERY obvious as you dial it up from ~5x to 10x. True, but only the x24 (or TS-30A2) allows you to mount a PEQ-2 on a Mod 0 swan sleeve recess. ;-) View Quote View All Quotes View All Quotes Originally Posted By mrsaturn7085: Originally Posted By Great_Balls_of_Fire: Eye box/FOV - Eye box checked out fine and I have had no issues bringing the gun to cheek quickly. I could see how it could be a little jicky for somebody new to shooting but it passes muster. FOV at 10x magnification is "meh." I find myself running this scope at 2.5x more than 10x. Hand-in-hand with the eye box/FOV is the 2.4 mm pupil @ 10x mag. On a bright day, the reduction in light entering your eye is VERY obvious as you dial it up from ~5x to 10x. Originally Posted By dangerdan: I haven't seen any. But which would you rather want? x32 lets more light in and is alot better at 10x True, but only the x24 (or TS-30A2) allows you to mount a PEQ-2 on a Mod 0 swan sleeve recess. ;-) When has anyone actually ever seen a PEQ-2 mounted in the recess location. If I ever saw them, they always seemed to be side mounted with a PVS-22. |
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View Quote View All Quotes View All Quotes Originally Posted By Hunterex: Originally Posted By secretwheelman: I just picked up something nice on my lunch break. Pics when I get home. http://replygif.net/i/163.gif He's gotta be home.... |
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[quote]Originally Posted By Movistar:
Shooting unsuppressed is for the birds and criminals[/quote] |
Originally Posted By Zakk101abn:
He's gotta be home.... View Quote View All Quotes View All Quotes Originally Posted By Zakk101abn:
Originally Posted By Hunterex:
Originally Posted By secretwheelman:
I just picked up something nice on my lunch break. Pics when I get home. http://replygif.net/i/163.gif He's gotta be home.... Definitely gotta be home by now! |
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Originally Posted By Zakk101abn: He's gotta be home.... View Quote View All Quotes View All Quotes Originally Posted By Zakk101abn: Originally Posted By Hunterex: Originally Posted By secretwheelman: I just picked up something nice on my lunch break. Pics when I get home. http://replygif.net/i/163.gif He's gotta be home.... |
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"Not proud of everything I've done, but at least you know I did it well."
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Originally Posted By secretwheelman: Yep. https://farm2.staticflickr.com/1699/25002236093_414e66e6e7_o.jpg https://farm2.staticflickr.com/1546/25628937915_a94457d2cd_o.jpg View Quote View All Quotes View All Quotes Originally Posted By secretwheelman: Originally Posted By Zakk101abn: Originally Posted By Hunterex: Originally Posted By secretwheelman: I just picked up something nice on my lunch break. Pics when I get home. http://replygif.net/i/163.gif He's gotta be home.... https://farm2.staticflickr.com/1699/25002236093_414e66e6e7_o.jpg https://farm2.staticflickr.com/1546/25628937915_a94457d2cd_o.jpg Far out. |
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http://www.amazon.com/Gentle-Propositions-J-S-Economos/dp/0615997635
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Originally Posted By secretwheelman:
Yep. <a href="https://flic.kr/p/E6mZJ6" target="_blank">https://farm2.staticflickr.com/1699/25002236093_414e66e6e7_o.jpg</a> <a href="https://flic.kr/p/F3K1kV" target="_blank">https://farm2.staticflickr.com/1546/25628937915_a94457d2cd_o.jpg</a> View Quote View All Quotes View All Quotes Originally Posted By secretwheelman:
Originally Posted By Zakk101abn:
Originally Posted By Hunterex:
Originally Posted By secretwheelman:
I just picked up something nice on my lunch break. Pics when I get home. http://replygif.net/i/163.gif He's gotta be home.... <a href="https://flic.kr/p/E6mZJ6" target="_blank">https://farm2.staticflickr.com/1699/25002236093_414e66e6e7_o.jpg</a> <a href="https://flic.kr/p/F3K1kV" target="_blank">https://farm2.staticflickr.com/1546/25628937915_a94457d2cd_o.jpg</a> I picked up a couple too, just in case I ever give in to the pull of this thread... |
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How does the quality of the brownells compare to Nodak spud?
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Originally Posted By Sogan:
I took it as NoDak machined them and then provided them to Brownells to engrave them and provide their serials numbers. Someone will chime in soon I'm sure View Quote View All Quotes View All Quotes Originally Posted By Sogan:
Originally Posted By Johnson184:
How does the quality of the brownells compare to Nodak spud? I took it as NoDak machined them and then provided them to Brownells to engrave them and provide their serials numbers. Someone will chime in soon I'm sure I believe that is the case. I don't have an NDS to compare side by side, but these are excellent. The cleanest lowers I have ever purchased. "Designed in conjunction with Nodak Spud..." And the language in the video on this page , specifically "... that we are having done." at 0:24. |
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Originally Posted By DontBuryMe: I picked up a couple too, just in case I ever give in to the pull of this thread... http://i.imgur.com/KkdWjuo.jpg http://i.imgur.com/J06F956.jpg View Quote View All Quotes View All Quotes Originally Posted By DontBuryMe: Originally Posted By secretwheelman: Originally Posted By Zakk101abn: Originally Posted By Hunterex: Originally Posted By secretwheelman: I just picked up something nice on my lunch break. Pics when I get home. http://replygif.net/i/163.gif He's gotta be home.... <a href="https://flic.kr/p/E6mZJ6" target="_blank">https://farm2.staticflickr.com/1699/25002236093_414e66e6e7_o.jpg</a> <a href="https://flic.kr/p/F3K1kV" target="_blank">https://farm2.staticflickr.com/1546/25628937915_a94457d2cd_o.jpg</a> I picked up a couple too, just in case I ever give in to the pull of this thread... http://i.imgur.com/KkdWjuo.jpg http://i.imgur.com/J06F956.jpg Nice!! Since I'm in a one-upping mood; Just wait till you fuckers see what I'll be bringing home in 2-3 weeks (really know idea how long it takes braceman )... Several more of these lowers went out to him today... |
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[quote]Originally Posted By Movistar:
Shooting unsuppressed is for the birds and criminals[/quote] |
I got mine back in a weeks time. Hes good. Damn good. Still have to mill mine out.
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Please excuse my ways. Iraq Veteran. 45B.
Originally Posted By DangerJ: Pentagon should troll back, hit a few camps with drone strikes, then tag the coordinates in a post with #LOL |
Originally Posted By RadOP: Alright I need the hives wisdom. I've officially lost my damn mind racking my brain around why I'm only getting 2 turns out of my 12th model before lock up. My BCM barrel I get 7.5 rotations and my Ballistic Advantage is 6 rotations. Barrel is a Shilen supposedly setup for the ops collar and brake based on specs provided. Soooo modify the collar or move the barrel step back? From back of the collar to the step inside is 1.033" Remeasured comes to 1.58" http://i1132.photobucket.com/albums/m580/rcmartin1/F43C381B-A172-45F3-8CBE-353A51A7AE44_zpsxhcwwkqu.jpg Remeasured comes to 1.72" http://i1132.photobucket.com/albums/m580/rcmartin1/A2786F50-F3AB-460A-BFD4-A42324A7F438_zps7zm0gqg2.jpg View Quote Either your barrel is too short, or your step is .04" shallow. Edit: I'd modify the collar... |
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[quote]Originally Posted By Movistar:
Shooting unsuppressed is for the birds and criminals[/quote] |
[quote]Originally Posted By Movistar:
Shooting unsuppressed is for the birds and criminals[/quote] |
Originally Posted By Zakk101abn:
Your "1.72"" measurement should be closer to 2", and your 1.58" is proportionally off (should be 1.625" ish) Either your barrel is too short, or your step is .04" shallow. Edit: I'd modify the collar... View Quote View All Quotes View All Quotes Originally Posted By Zakk101abn:
Originally Posted By RadOP:
Alright I need the hives wisdom. I've officially lost my damn mind racking my brain around why I'm only getting 2 turns out of my 12th model before lock up. My BCM barrel I get 7.5 rotations and my Ballistic Advantage is 6 rotations. Barrel is a Shilen supposedly setup for the ops collar and brake based on specs provided. Soooo modify the collar or move the barrel step back? From back of the collar to the step inside is 1.033" Remeasured comes to 1.58" http://i1132.photobucket.com/albums/m580/rcmartin1/F43C381B-A172-45F3-8CBE-353A51A7AE44_zpsxhcwwkqu.jpg Remeasured comes to 1.72" http://i1132.photobucket.com/albums/m580/rcmartin1/A2786F50-F3AB-460A-BFD4-A42324A7F438_zps7zm0gqg2.jpg Either your barrel is too short, or your step is .04" shallow. Edit: I'd modify the collar... Checked the barrel today too it's 18" exactly. I've already disassembled the entire thing and prepped to have the barrels step moved back just not confident that's the right decision. I've already called in a Hail Mary for another BCM barrel to replace this one if it doesn't work out. Would be a shame to knowing how accurate this one is. Just looked at my BA barrel and the step is 1.70" back. Yahtzee modifying the barrel will do. |
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Originally Posted By RadOP: Checked the barrel today too it's 18" exactly. I've already disassembled the entire thing and prepped to have the barrels step moved back just not confident that's the right decision. I've already called in a Hail Mary for another BCM barrel to replace this one if it doesn't work out . Would be a shame to knowing how accurate this one is View Quote View All Quotes View All Quotes Originally Posted By RadOP: Originally Posted By Zakk101abn: Originally Posted By RadOP: Alright I need the hives wisdom. I've officially lost my damn mind racking my brain around why I'm only getting 2 turns out of my 12th model before lock up. My BCM barrel I get 7.5 rotations and my Ballistic Advantage is 6 rotations. Barrel is a Shilen supposedly setup for the ops collar and brake based on specs provided. Soooo modify the collar or move the barrel step back? From back of the collar to the step inside is 1.033" Remeasured comes to 1.58" http://i1132.photobucket.com/albums/m580/rcmartin1/F43C381B-A172-45F3-8CBE-353A51A7AE44_zpsxhcwwkqu.jpg Remeasured comes to 1.72" http://i1132.photobucket.com/albums/m580/rcmartin1/A2786F50-F3AB-460A-BFD4-A42324A7F438_zps7zm0gqg2.jpg Either your barrel is too short, or your step is .04" shallow. Edit: I'd modify the collar... Checked the barrel today too it's 18" exactly. I've already disassembled the entire thing and prepped to have the barrels step moved back just not confident that's the right decision. I've already called in a Hail Mary for another BCM barrel to replace this one if it doesn't work out . Would be a shame to knowing how accurate this one is I'm thinking the original barrels were slightly longer that 18". KOBK would be the man to talk with, since he literally has a no shit original SPR. Maybe he could give you a barrel length with brake. (Only because taking that thing apart would be a travesty) Edit: Are the two barrels identical, minus the step location? [email protected] and [email protected] |
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[quote]Originally Posted By Movistar:
Shooting unsuppressed is for the birds and criminals[/quote] |
Originally Posted By Zakk101abn:
I'm thinking the original barrels were slightly longer that 18". KOBK would be the man to talk with, since he literally has a no shit original SPR. Maybe he could give you a barrel length with brake. (Only because taking that thing apart would be a travesty) Edit: Are the two barrels identical, minus the step location? [email protected] and [email protected] View Quote View All Quotes View All Quotes Originally Posted By Zakk101abn:
Originally Posted By RadOP:
Originally Posted By Zakk101abn:
Originally Posted By RadOP:
Alright I need the hives wisdom. I've officially lost my damn mind racking my brain around why I'm only getting 2 turns out of my 12th model before lock up. My BCM barrel I get 7.5 rotations and my Ballistic Advantage is 6 rotations. Barrel is a Shilen supposedly setup for the ops collar and brake based on specs provided. Soooo modify the collar or move the barrel step back? From back of the collar to the step inside is 1.033" Remeasured comes to 1.58" http://i1132.photobucket.com/albums/m580/rcmartin1/F43C381B-A172-45F3-8CBE-353A51A7AE44_zpsxhcwwkqu.jpg Remeasured comes to 1.72" http://i1132.photobucket.com/albums/m580/rcmartin1/A2786F50-F3AB-460A-BFD4-A42324A7F438_zps7zm0gqg2.jpg Either your barrel is too short, or your step is .04" shallow. Edit: I'd modify the collar... Checked the barrel today too it's 18" exactly. I've already disassembled the entire thing and prepped to have the barrels step moved back just not confident that's the right decision. I've already called in a Hail Mary for another BCM barrel to replace this one if it doesn't work out . Would be a shame to knowing how accurate this one is I'm thinking the original barrels were slightly longer that 18". KOBK would be the man to talk with, since he literally has a no shit original SPR. Maybe he could give you a barrel length with brake. (Only because taking that thing apart would be a travesty) Edit: Are the two barrels identical, minus the step location? [email protected] and [email protected] I don't have any rods here at home to measure the barrels but what I've got is th BA 16" step is @ 1.7" and th Shilen 18" is @ 1.58". The BCM is 18" but don't have torch here to loosen the collars set screw to measure the step. Ron at AE hasn't answered my email (week now) so I don't know I should even bother asking him for a custom long collar with .14 removed from the inside step. |
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Originally Posted By Zakk101abn: Nice. You doing an Easy Jig?? View Quote View All Quotes View All Quotes Originally Posted By Zakk101abn: Originally Posted By HaveBlue83: I got mine back in a weeks time. Hes good. Damn good. Still have to mill mine out. No jigs are ever in stock online and i dont have a router so until i can use someones mill AND get a jig i wont have it done. |
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Please excuse my ways. Iraq Veteran. 45B.
Originally Posted By DangerJ: Pentagon should troll back, hit a few camps with drone strikes, then tag the coordinates in a post with #LOL |
Originally Posted By HaveBlue83: No jigs are ever in stock online and i dont have a router so until i can use someones mill AND get a jig i wont have it done. View Quote View All Quotes View All Quotes Originally Posted By HaveBlue83: Originally Posted By Zakk101abn: Originally Posted By HaveBlue83: I got mine back in a weeks time. Hes good. Damn good. Still have to mill mine out. No jigs are ever in stock online and i dont have a router so until i can use someones mill AND get a jig i wont have it done. |
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[quote]Originally Posted By Movistar:
Shooting unsuppressed is for the birds and criminals[/quote] |
Well... ordered myself the Brownells M16A1 lower. Guess I'm getting serious about this build.
Been looking at the price of Colt BCG and Uppers... wouldn't it be cheaper to buy a 6920 OEM1 and then part out the lower and barrel? Colt uppers are like $150 if you can find them in stock, and Brownells has the Colt BCG for $220 or so. A Colt 6920 OEM is going for under $800 and I think the Colt lowers sell for like $400-$500 right? Barrels for $200? |
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Originally Posted By RTUtah: Patent infringement? Not sure how all that works. If it was me, I wouldn't be that eager to reinvent the wheel but it would be a cool project for sure. View Quote View All Quotes View All Quotes Originally Posted By RTUtah: Originally Posted By BoltactionJockey: Originally Posted By BurtSaun1049: Originally Posted By BoltactionJockey: How much flak would I catch if I made my own suppressor for my up coming mk12 mod1? It would utilize the ops brake and collar! If it looks very similar to the Ops can, it would be pretty cool. Otherwise, seems like a lot of effort to avoid buying a can that's a pretty phenomenal deal for what you get. Building it would save me a long form 4 wait, by doing a form 1. A lot cheaper also, I have access to all kinds of material working for a metals recycler and have a lot of machine shops I service. Patent infringement? Not sure how all that works. If it was me, I wouldn't be that eager to reinvent the wheel but it would be a cool project for sure. He's not infringing anything if it's personal use and not for sale. |
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Uncle
Sam's Misguided Children |
Originally Posted By mrsaturn7085: True, but only the x24 (or TS-30A2) allows you to mount a PEQ-2 on a Mod 0 swan sleeve recess. ;-) View Quote View All Quotes View All Quotes Originally Posted By mrsaturn7085: Originally Posted By dangerdan: I haven't seen any. But which would you rather want? x32 lets more light in and is alot better at 10x True, but only the x24 (or TS-30A2) allows you to mount a PEQ-2 on a Mod 0 swan sleeve recess. ;-) That doesn't make sense. The NF 2.5-10x32 is essentially the same size as the Mk4 MR/T 2.5-8x36 |
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Uncle
Sam's Misguided Children |
Originally Posted By dangerdan: He's not infringing anything if it's personal use and not for sale. View Quote View All Quotes View All Quotes Originally Posted By dangerdan: Originally Posted By RTUtah: Originally Posted By BoltactionJockey: Originally Posted By BurtSaun1049: Originally Posted By BoltactionJockey: How much flak would I catch if I made my own suppressor for my up coming mk12 mod1? It would utilize the ops brake and collar! If it looks very similar to the Ops can, it would be pretty cool. Otherwise, seems like a lot of effort to avoid buying a can that's a pretty phenomenal deal for what you get. Building it would save me a long form 4 wait, by doing a form 1. A lot cheaper also, I have access to all kinds of material working for a metals recycler and have a lot of machine shops I service. Patent infringement? Not sure how all that works. If it was me, I wouldn't be that eager to reinvent the wheel but it would be a cool project for sure. He's not infringing anything if it's personal use and not for sale. 10-4, that's what I deduced after posting. |
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http://www.amazon.com/Gentle-Propositions-J-S-Economos/dp/0615997635
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What Doctor mount is that?
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