Daniel Defense semi-auto version of the USSOCOM MK12 Special Purpose Rifle. 18-inch stainless steel heavy barrel with mid-length gas system. Designed for precision semi-auto fire. Type: Rifle Action: Semi-Auto Caliber: 5.56 NATO Capacity: 30 Year introduced: 2016, USA Weight: 76 oz Overall length: 35.5" Status: Active Intended use: Precision, Long-Range, Duty