This rifle features a match grade, 17.5" 416R stainless steel barrel topped with a Dead Air Flash Hider. A proprietary Radian free-float M-LOK handguard is integrated with the upper and kept in place by sturdy stainless steel anti-rotation pins. This Direct Impingement model 1 rifle promises sub-MOA groups with Black Hills Match Grade Ammunition and has polished M4 feed ramps for increased accuracy. The bolt carrier group is M16 style, and, of course, a Randian Raptor charging handle is included. Radian puts a quality ambidextrous lower on this rifle, including an ambi bolt catch release, plus includes their Talon Safety selector and their Radian Vertex trigger. Radian Model 1s are precisely machined and assembled, then test fired, but Radian also guarantees their products for life, so you can be sure that this AR-15 will function beyond your expectations.