The MK12 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. These barrels, some of the most accurate and durable barrels available, are bead blasted and chemically passivated to resist corrosion. The MK12 barrel is engineered with a rifle-length direct impingement gas system and utilizes the MK12 gas block, which is built to Crane Specifications for USSOCOM. The MK12 gas block is precision CNC machined from 416 stainless steel and Black Oxide Coated. The rifle is fed with a M16 profile bolt carrier group and uses a Vltor Mod 4 charging handle for ease of operation. The upper receiver is equipped with a free floating DDM4 Rail 12.0 allowing for your choice of optics and accessories and is finished off with a Daniel Defense Improved Flash Suppressor. The MK12 was designed from the ground up to be a precision rifle, therefore it required certain refinements. It's equipped with the Geissele SSA 2-Stage Trigger to give the marksman an advantage delivering precise fire to the target. This precision rifle comes finished with Daniel Defense Tornado Cerakote and is furnished with the newly designed, rugged and comfortable Daniel Defense Buttstock and Pistol grip.