The Daniel Defense MK18 5.56 Pistol Black is inspired by the original MK18, which has been extremely popular within the Law Enforcement and Special Operations communities. This firearm is classified as a Pistol and not a Short Barreled Rifle (NFA regulated items require ATF approval and a tax stamp). The MK18 Pistol features the picatinny quad rail Daniel Defense currently provides to USSOCOM and a 10.3 inch Cold Hammer Forged Barrel, the same length commonly used for CQB operations. The MK18 RISII features our patented 6-bolt Bolt-Up System and has been rigorously tested prior to fielding by USSOCOM. This pistol comes equipped with the SB Tactical SBA3 Pistol Stabilizing Brace with 5 positions of adjustability and integral, ambidextrous QD swivel attachment point. The independently ambi GRIP-N-RIP Charging Handle accommodates left- and right-handed shooters. The Daniel Defense MK18 5.56 Pistol Black comes equipped with the ergonomic Daniel Defense Pistol Grip with an integral trigger guard and soft touch overmolding.