Chambering: 223 Wylde for 5.56 NATO. FM-15 Gen 2 platform, direct impingement. Barrel: 16-in. lightweight 41V50 steel, black nitride finish. 1:8 twist, A2 flash hider, 1/2x28 muzzle thread. Mid-length gas system, .625" non-adjustable gas block. Weight: 6.0 lbs. Length: 34", 25.75". Hand Guard: 15.5" M-LOK free float. Thril competition stock, Thril Rugged Tactical pistol grip. USGI Mil-Spec trigger.