National Match Service Rifle Float Tube/Handguard Kit $ 150.00 – $ 165.00. I used this barrel for a MK12 clone platform, with the 2A Armament Balios lite receivers, and the 12 inch Balios Lite keymod rail. Select options. The evolution of the SPR comes home to Daniel Defense in the MK12. The Criterion is leading because of the price and I've heard good things about the cuts at Compass Lake. ... 18 inch barrel. To give the shooter the best balance of weight and accuracy this BCM Mk12 barrel has a mid-weight profile and a rifle length gas system. The Brownells 5.56 NATO MK12 Profile AR-15 barrel are completely machined and finished by craftsmen in the USA and are made using stainless-steel bar stock that's 416-R certified steel and completely stress relieved. From 20 caliber to Four Bore, Krieger Barrels offers a wide variety of popular and rare calibers in bolt action, AR-15, AR-10, M1 Garand, M1A/M14 and M1903. The barrel is made by Douglas Barrels and is an 18-inch, button-rifled 1:7 twist with a rifle-length gas system. $370 Kreiger Mk12 SPR barrel. SPR/MK-12 Barrels 18.1″: Douglas-SS $ 370.00 – $ 485.00. 17.9" 1:7 twist. keep updated. Barrel extension and locator pin are both included and factory installed. 17.9" 1:7 twist. Re: Whats the most accurate 5.56 barrel for a 18" SPR ever mk12 ever issued to the military regardless of branch has a douglas blank/compass lake turned 18" stainless 1-7(ish) twist barrel. Technical Information: Length: 18" Select options. 0 Review . This, along with being DLC finished, equates to unprecedented accuracy and durability. Sign up for our newsletter to receive updates and exclusive offers. $470 Right now the Criterion is the leading candidate and the Centurion is second. when they say 1-7 it could actually be 1-6.5 to 1-7.5 twist and still be considered 1-7. The barrels are manufactured by Douglas Barrels with a unique contour that reduced weight but maintained rigidity for accuracy. Whether you are re-barreling your service rifle, AR, benchrest, F-class or hunting rifle, Krieger Barrels gives … Add to cart. 10.5" 5.56 Government Profile Carbine Length AR 15 Barrel, Modern Series ... Add to Cart ; 18” 6MM ARC SPR Rifle Length W/15” Atlas R-One M-LOK Handguard Complete Upper $594.00. Add to Cart. Douglas Mk12 SPR barrel. An 18-inch (457 mm) threaded-muzzle match-grade free floating stainless steel heavy barrel with a 1:7 (178 mm) rifling twist ratio is standard for the SPR. Interchangable Rear Aperture for National Match Sight $ 7.00. (410 stainless is a harder and more corrosion resistant than the conventional 416 stainless found in most barrels.) Superlative Arms Adjustable Gas Block $ 100.00. Ballistic Advantage 8" .300 Blackout Barrel - Performance Series: Ballistic Advantage 8" 5.56 Pistol Length Barrel: $155.00. $120.00. Instagram . This set up, was something I didnt expect to work as good as it did, and when it needed to perform it did and it ran a marathon in the Olympics at that. Douglas also only uses its premium barrels for the Mk 12. Gas Tube Roll Pin $ 0.50. The MK12 barrel … The barrels measure 18 inches long. Select options. Ballistic Advantage 8.3" .300 Blackout BA Hanson Barrel w Lo Pro: Ballistic Advantage 8.3" .300 Blackout BA Hanson Barrel w Lo Pro: Ballistic Advantage 8.3" 9MM AR15 Barrel - Modern Series: $210.00. The 18" Mark 12 barrel features a Rifle Length Gas Port location, offering shooters the smoother recoil impulse that is the hallmark of this gas system length due to the increased gas dwell time and lower gas port pressure. $185.00. This firearm is constructed around an 18-inch Stainless Steel barrel with a chamber created during the Cold Hammer Forging process, which ensures the most precise alignment of the chamber to the bore possible.