18" 5.56, Rifle length, 1:7, MK12
Our 18” MK12 barrel, chambered in 5.56mm NATO, is known for its use by US Special Operations. It’s constructed from a proprietary Stainless Steel blend with the chamber created during the Cold Hammer Forging process, which ensures the most precise alignment of the chamber to the bore possible. These barrels, some of the most accurate and durable barrels attainable, are DLC finished. The MK12 barrel is engineered with a rifle length direct impingement gas system and is a solid choice for your AR-15 Build.
|Manuf. Process||Cold Hammer Forged|
|Muzzle Thread||1 ⁄ 2 × 28 TPI (Threads Per Inch)|
|Gas System||Rifle Length|
|Diameter At Gas Port||.750″|
Great barrelI used this in a MK12 Mod1 clone build. I use Blackhills 77gr ammo that was designed for this barrel. I will say that using the clone correct flashsuppresor and suppressor collar fits perfectly. The barrel is solid and perfectly machined. I am still in the process or zeroing my rifle but I am certain that it will shoot sub MOA. I wish DD made this exact barrel profile for every length rifle. Especially 10.5 and 11.5. Buy this and build with confidence. Its an amazing barrel.
Awesome BarrelIve had this barrel for four years now and am extremely happy with the accuracy and performance. It is my favorite barrel on my favorite build thus far!!!
Superb accuracyHighly recomended!!!