Directly descended from the rifles developed by LWRCI(TM) to meet the requirements for the U.S. Army Individual Carbine program, the IC-A5 is built for high performance. 16.1" Spiral Fluted Barrel, 1:7 Twist, Black Finish, LWRCI Compact Stock, Magpul MOE+ Grip, 2 Position Adjustable Gas Block, Patented Short-Stroke Gas-Piston System, Cold Hammer Forged Barrel, Ambidextrous Lower.