Posted: 7/20/2018 1:55:12 PM EST Buy once cry once. More time and volume for the gasses to expand and drop just a tick. I do have the load at 24.2-24.3 which has no pressure but velocity is around 2640ish. Yeah, I sacrificed some performance but it’s for fun and coyotes out to 350-400 max and it’ll do that just fine. The answer is probanly not an AEM5 at all, but they look so darn cool I had to keep that. Re: Mk12 Mod0 vs, Mod1 A Mod 0 sans the SWAN sleeve is very light. Accuracy was very good too, su MOA out to 300 which was the furthest I had access to at the time. Mod H: The Mod H by nature was already a small batch configuration, but even as soon as they were handed back to units, the Ace SOCOM stocks The DPMS Mk12 barrels are NOT properly profiled for a clone. Cloning take's time, you have roughly 5-6 months until your AEM5 clear's. Our least favorite feature is the Stainless Barrel. Le Mk. Its going to be heavier, its going to handle like a rifle. I mean for super long distances i have my mauser and scar 17. BCM deviated from the original but adding a VLTOR collapsible buttstock. Just put together a Mod 0, and as cools as it looks, it's a bit of a pig. After having both, Recce is the way to go hands down! The original intent was to allow snipers to observe and provide rapid a lightweight precision-fire capability at moderately … Aero upper receiver (wanting a colt soon) ARMS #22 H’s. 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. handguard … PRI Mk12 Mod 0 SPR Upper Receiver Group (URG) This is the PRI standard configuration URG for the Mark 12 Mod … Itâs a shooter for sure and doesnât mind running suppressed. All good. All Rights Reserved. Beauty contest. Shoots softer than a carbine, tad more rough than a rifle with 20" barrel. A U.S sniper looks through the scope of a Mk 12 Mod 1 Special Purpose Rifle. Guest. MK12 Mod 1 Q: I had purchased my MK12 SPR from the guys over at High Caliber Sales. I get jumping on people that claim clone, vs inspired. The first 16″ precision M4 wore a Lilja Navy barrel and that rifle was the origin of the “recce” term. O is heavy with an AEM5, but the combo works extremely well. Not too shabby right? AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. Have hit 800 but if it's variable-windy, don't waste your ammo. Because of this, we offer a comparable option in 4150 carbon steel as an alternative for those who feel the same. Mk12 Mod0 uses the PRI flip-up front sight (in place of standard MK12 gas … The Mk 12, Mod 0 is carried by the U.S. Army Special Forces Rangers. Never do it halfway. The fire selector switch functions well, and yes, unlike the real steel MK12 Mod 0/1 which is semi-automatic, this one has FULL AUTO mode. Most people here are familiar with the MK-12 SPRs MOD 0 and MOD 1 rifles, as there have been a few releases in 1/6 by different companies. The … I dont think its going to make much of a difference either way. The Mod 0 uses the A.R.M.S., Inc. #38 SPR Mod. I have a 16" mid. I'd say the SEAL RECCE or a Mk12 Mod-H. Posted: 7/20/2018 1:44:42 PM EST Either go full-clone or no clone. Seal Recce over the Mod 1. For properly contoured MK12 SPR barrels, this collar is required to properly mount the AEM5 or AE22. JavaScript is disabled. Lower Receiver: Colt/Hydramatic A1 Profile Lower. Cloning take's time, you have roughly 5-6 months until your AEM5 clear's. Please expand upon this, since the distance on an H/mid length port to muzzle is longer than on a rifle gas 18”... More dwell time from the time the bullet passes the gas port to when it exits the barrel. PRI originially supplied the US Navy at NSWC Crane with the round forearm free floating handguard for the SPR rifle, which became the Mk12 Mod0. My AEM5 should be here in a month or so to complete my Mod 1. Covers everything I need from a 5.56 gun. Seal RECCE. The SPR rifle was now to be named, the Mk 12. It delivers velocity at lower pressures but might spike at the top end. When the MK12 was finalized, the acronym would remain the same but what it stood for would be different. I own both but I find the RECCE more usable. The nice thing about the MK12 Mod H is the 16 inch barrel and collapsing stock. With their work slowing down, Centurion Arms is the go-to company out there giving today’s shooters access to this … I’ve wanted a MK12MOD1 upper for a while, so … If imagine 18" with rifle is between mid/16 and rifle/20. I had a mod 1 that I converted to a Mod H for the reasons you state, specifically the oal. MSRP: $29 Thread Adapter/Protectors: For mounting the AE22 or … Gas port sizes have a great deal to do with recoil as well. I just don't care for an AR with a barrel over 16". the MK12 is a little different. Lower Receiver: Colt A2 Profile Lower. The Mod H came in between the Mk12 Mod 1 and a later M4 fielded with a 16″ Colt HBAR. 2 Posts . Steven. Today's cantilever mounts are so good, I didn't see where the top rail would get me anything. When I was putting together my "SPR-ish" rifle, I obviously had influence from the original, but had a "what would the setup be today?" Wish I hadn’t scratched the H itch, but did. 18” felt like a boat anchor once my can came in, so I built a 12.5” and it’s night and day feel wise. Centurion Arms has made the most functional, precise, reliable rifles available for sale. 12 Special Purpose Rifle (« Fusil à usage spécial »1) est un fusil de précision utilisé par l'US Navy, et en particulier par l'USSOCOM lors des opérations Enduring Freedom et liberté irakienne. Pretty much will have 2 of the same rifle (not a bad thing tho lol). I actually had an epiphany this week. Barrel: Lilja 15.1” 1/7 Twist Stainless Steel midlength gas system w/ Ops Inc Profile, Lilja 16” 1/7 Twist Stainless Steel … Re: Mk12 Mod0 vs, Mod1 A Mod 0 sans the SWAN sleeve is very light. Comes with complete bcg, sights, Allen engineering brake and collar, recce rail, and forearm. You should be able to save for a scope by then. The Recce Rifle: Builder's Guide to Modern Classic - Everyday Marksman. Also seated deep at 2.240 so you can play with pressure signs by seating slightly longer. Based on my experiences, rifle length gas systems just shoot softer in general which is probably due to the longer, I guess, pre-dwell time. NSN 1005-01-562-0913 As used on the Naval Special Warfare Command (NSWC) SPR (Mk12 Mod1), USMC SAM-R, SR15 Match, … I’m getting 2770 using 77smk via my hhh mail we vhand loads and have no problem hitting 2/3 ipsc at 800 yards with the mod H. curious what your load is to get 2770fps from a 16” barrel with 77gr. Every time I check out threads like this it makes me wish we didn't get rid of these guns. Like the 7.62mm Mk11, the Mk12 could be used in both roles. In places like Najaf and Ramadi, we would find ourselves clearing rooms and then engaging the enemy at long range just moments later. You arenât saving any noticeable weight between the two. Stocks: ACE Socom Gen Carbine/Rifle Length, LMT Sopmod Gen I (Various Others) Grip: A2, Ergo (Various Others) Trigger: Knights Armament 2 Stage, Geissele SSA/SSA-E. Member. How much more performance do you get out of a Mod 0 than the Mod H… I could get more velocity by going a grain but I played it safe with the lower charge. MSRP: $29 SPR to M4 Adapter: For properly contoured MK12 SPR barrels, this collar is required to properly mount the AEM2, AEM3, and AEM4. Especially if you're going mod 0 with the top rail. DD Mk12. Yeah man, I can't wait to get my AEM can. For the rifle made by FN-Herstal, see, (Although many .22 caliber conversion kits are made for the AR-15, the rimfire versions are only cosmetic similar rifles. Primers show mild cratering, brass sometimes has slight extractor marks. Going with the BA 18” on mine probably more a Mod H as I prefer a collapsible stock. Had dinner with a group one time that included a guy who killed a Taliban at 900 yards with a Mk12. Further Information on the Original United States Navy Mark 12 Mod 0 and Mod 1 Special Purpose Rifle (SPR) The MK12 rifle was one of the beginning stages of "enhanced carbine" concept. February 10, 2021 at 9:08 am. Semi-Automatic Rifles . Get both. Even parts like the Knights Free Float RAS and proper profiled barrels are hard to find for the MK12MOD1. The Mod 0 variant I received for review features PRI’s Gen III 121/2-inch free-float fore-end. PRI mk12 mod h upper receiver, complete ready to shoot. When I loaded for 5.56 I got 2785 fps using 24.5 grain in gaut brass. Barrel: Noveske 16” 1/7 Twist Stainless Steel … Help me out guys. Primer pockets get loose shooting suppressed with AEM-5, so I mainly shoot it un-suppressed. Mine has a 16â Stealth barrel as well with a 1-6x, Geissele rail, MBT trigger. PRI Mk12 Mod 0 SPR Upper Receiver Group (URG) This is the PRI standard configuration URG for the Mark 12 Mod 0 18" Mark 12 Mod 0 SPR Upper in Black Finish 5.56 Cal. The original designation as SPR was intended to mean Special Purpose Receiver but the system was eventually type classified by the Navy as a standalone rifle and designated MK12 Mod 0/.1. Mk 12 Mod 1 rifle in USMC service in Afghanistan, 2010. It may not display this or other websites correctly. An absolute dream to shoot. That's what I'm working towards, [ARCHIVED THREAD] - MK12 Mod 1.... or Recce, https://www.AR15.Com/media/mediaFiles/356129/OP1EA5u-621739.JPG. Mk12 Mod 0 vs Mod H. greg1147. Firearms designed by experts with years of combat experience. Upper Receiver. The SPR fore-end also has a continuous top rail that makes it possible to mount a scope in traditional rings forward enough … Iâm in a similar dilemma...Mod H or NSW recce. Debating either building a Mk12 mod 1, 18 inch barreled upper or a 16" Recce build. … I've shot other 16" 223 ARs out to 400 yards no problem, which is about as far as I would take a shot meant to be lethal with the setup. PRI originially supplied the US Navy at NSWC Crane with the round forearm free floating handguard for the SPR rifle, which became the Mk12 Mod0. Build something else later. Re: Mk12 Mod0 vs, Mod1 A Mod 0 sans the SWAN sleeve is very light. Even a rifle gas 16” in a dedicated suppressed system works. Took me a little over a year to finish my Mod 1 bit by bit. My “recce” is inspired by the idea. It is fun showing people how quiet this system is - truly impressive. Despite the MK12 being used less in the military, it has a growing cult following. You are using an out of date browser. Honestly, the featureless grip for CA bullshit is kinda convenient for those that don't wrap their thumb around the grip for precision stuff anyway. If you are in love with quad rails get the Mod 1. SEAL Recce . The great barrel, superb fore-end and continuous top rail all combine to make for an exceptionally user-friendly rifle. The original SEAL Recce Rifle was an in-house modification to M4 carbines. Notice we do not offer a lot of Stainless Steel barrels.. we are not a fan. I’ll prob start at 25g and go to 26. AR15.COM is the worldâs largest firearm community and is a gathering place for firearm enthusiasts of all types. And I also agree on the bipod. Trigger Guard: GI. Mk12 Mod 0 vs Mod H performance? Stocks: ACE … I'd take a high quality 16" over a mediocre 18". But we do know that Lilja barrels and optics in the 2.5-10 range were popular. Upper Receiver: Colt AF/Keyhole. Rifles. The original intent was to allow... Great read. Developed originally by the Naval Surface Warfare Center’s Crane Division for SEALs that needed a rifle with greater lethality than the M4, but in a lighter, more versatile platform than the MK14. Probably not a lot of difference in MV. I think you need to go back to the second half of what I said in regards to what I was responding to... You are definitely correct, and I cant read properly at 3am where I am LOL. It isn’t one of the first, rather it’s one of the most recent. RIGHT: The Mod 1 also uses the KAC 600 meter flip up rear (KAC part number 98474), … I love shooting my Mod 1. Pure personal preference. My barrel is a Douglas 18" w/rifle gas. MK12MOD0 clones use some discontinued hard to find parts, so people seek them and have driven the prices up on them. These things don’t bounce off even at extreme ranges for 5.56. You have parts on hand, and you were obviously motivated to get the build going. Trigger Guard: GI. This time shooting 300, 455, and 686 yards in high winds. Also a guy who used an M4 with RCO and green tip at 600. The PRI fore-end has plenty of length for positional shooting and still leaves enough space for the addition of sling swivel mounts, lasers and night-vision equipment. 50-75fps. Specs. I was in your same boat. The original SEAL Recce Rifle was an in-house modification to M4 carbines. I have a Mod1 and a ModH. For a better experience, please enable JavaScript in your browser before proceeding. My Mk 12 I'd my favorite rifle and the first I always pull out. available in 1/7 or 1/8 twist, as well as black or fde finish. mk12 mod 0 vs mod 1. No other pressure signs. And it is one of the first examples of the “recce” rifle concept on the AR-15 platform. The original muzzlebrake was … Stocks: LMT Sopmod Gen I. Thread starter kb1; Start date Dec 26, 2020; Forums. Like Centurion Arms, they are a company that possesses a unique insight into the original request for the development of, and the refinement of the MK12 SPR. I can easily get 2775 in summer and 2750-60 in colder temps with only flattened primers in summer. They will eventually go back to the 12.5, which is the optimal length IMO. Since they were so individualized, there really wasn't a spec. The BCM Mod 0 rifle we were sent incorporates an 18-inch BCM stainless steel 410 barrel with an ion bonded black DLC coating. mentality. A USMC Mk 12 Mod 1 on a range in Iraq. PRI Mk12 Mod 0 SPR Upper Receiver Group (URG) This is the PRI standard configuration URG for the Mark 12 Mod 0 18" Mark 12 Mod 0 SPR Upper in Black Finish 5.56 Cal. … Video to show the differences and the options between the mark 12 Mod 0 Gen II and Gen III uppers. Grip: Standard A2, Ergo. Minuteman. AA2520 is a great powder for MK262 cloning, I can attest to the speeds Lancer stated. Makes for better conditions for the casing in the chamber to shrink back down so it will be extracted more easily, less gas pressure going back is less bolt speed which means less energy battering the bolt and carrier over time. I'll have a head to head comparison in March when I get back state side with my PRI Mk12/0 build. The Mk12 platform is just awesome regardless which mod you get. Guest. Both are gorgeous. Manufacturer: Naval Surface Warfare Center - Crane Division Model: Mk12 Mod 0/1 SPR Caliber: 223 rem / 5.56x45mm NATO Barrel: Douglas Premium Air Gauged - SPR Profile Barrel Length: 18" (457mm) Twist: 1:7" Magazine: 20 or 30 Round Detachable Box (M16) Trigger: Knight Armament Corp. SR-25; M110 Semi … somthing_different91. Its possible to tweak the gas port size to help this but its a gamble. Typically they're equipped with a higher power scope and … The history goes back to the early 1990s. Since they were so individualized, there really wasn't a spec. February 10, 2021 at 9:08 am. You’ll be spoiled. Dec 12, 2004 155 5 SoCal. You should be able to … I swear the thing doesnât move when you shoot it. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. And i already have a windham regular uppper. Upper Receiver: Colt AF or Keyhole. What they came up with is commonly known as the Mk12 MOD 1 and MOD 0 SPR (special purpose rifle), essentially an accurized M16A4 and for its … Trigger: Knights Armament 2 Stage, Geissele SSA/SSA-E . PARTS LIST Lower Receiver. PX Member. As good as TAC is, that is a seriously overpressure load (unless you're seating them 2.260 (long) Have you tried Accurate 2520 at around the 25.6 - 25.8 range? My two favorite clones are my mod 0 mk18 and mod 1 mk12. February 10, 2021 at 9:08 am. Funny you mention AA2520 as I have a lb of it on the shelf and have been meaning to do an OCW with LabRadar using it. Going from 18 to 16, I don’t think you’ll see much difference in weight/feel or performance. See also. This collar will work with both MK12 MOD0, and MK12 MOD1 builds. Not all 18" SPR's are running rifle length. It's not a whole lot lighter than my 16" .308. PARTS LIST Lower Receiver. Upper Receiver. - and I went the Mod 0 route. Mod 1. BCM’s Mk12 Mod 0 Ergonomics. I bring y'all yet another video with the "Mock" 12 build. I’ve shot SPR barrels and a few 14.5 and 16 middys. Copyright © 1996-2021 AR15.COM LLC. Buy once cry once. Should be a hoot. Selective Fire Trigger Group (Early), Geissele SSA-E (Late) Stock: M16A1, A2 … Yea I know its not clone correct but many of the early 18" dmr barrels that were going overseas to units and contractors like the Noveske 18" SPR could be had in a mid gas system. Less weight, more compact, heavy can isn't as far out. Mk12 Mod H . kb1 Sergeant. The Mk 12, Mod 0 NSN 1005-01 … I am kinda enamoured with the Mk12 mod 1 but i am sure it is heavy as heck to use. I plan on taking my 18" "SPR" down to 16", and keeping my 13" MCMR. The original barrels were custom barrels from Douglas Barrels, Inc. and were renowned for the accuracy they delivered. I prefer the Mod O for esthetics but sold all of mine due to weight issues. My SH/JDM 308 build will have a Mod 0 type PRI handguard. You must log in or register to reply here. Also used the Mod1 a decent amount of the time while deployed. Yes, an 18" with the AEM5 on the end is heavy. 6 months ago. Even the original RECCE evolved into the 18â SPR. After over a month of back and forth I finally made a damn decision. I have both and prefer the O. Elusive "West Coast" MK12 Variant taken off slain ISIL fighter Samir Al-Hajeed in Mosul, 2017. it’s a toasty one that if you want to duplicate, work up. I think a better apple to apple comparison would be a 16” intermediate gas, which is still quite capable in the operating envelope when feeding it 5.56 pressure ammo. Running a MOD 0 and headshots at 600, 2 inch swingers at 500, and consistent torso hits at 700. Dec 26, 2020 #1 Just put together a Mod 0, and as cools as it looks, it's a bit of a pig . Mine almost always comes off if I … Already had the rail shaved down so the AEM5 will be a flush fit with the 16" barrel. But we do know that Lilja barrels and optics in the 2.5-10 range were popular. The history goes back to the early 1990s. Founded by Frank Galli in 2014, Sniper’s Hide has been offering informational videos, podcasts, and other support to it’s users in one location. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. Iâm at a crossroads and donât know what way to go. The traditional/"actual" SPR rifles had 12" handguards.