The Patriot Ordinance Factory Revolution .308/7.62x51 direct gas impingement pistol features a 12.5" barrel, 11.5" mlok rail, mission first tactical grip and pistol brace, dual extraction technology, 9-postition adjustable gas block, nitride heat treated barrel, oversized heat sink barrel nut, 5.56 sized bolt carrier with roller cam pin, 4.5LB single stage match grade trigger, billet receiver set with fully ambidextrous controls, anti-tilt buffer tube. Weighing in at a scant 6.3 pounds and measuring 29.5" collapsed this .308 is ideal for a vast array of situations.