Purpose built for 3-gun and practical rifle competition, the AR103GN13 is ready to dominate, right from the box. A Timney 4-lb., single-stage trigger and Ergo wide grip are standard. The light weight MBA-1 buttstock is adjustable for cheekpiece and length-of-pull, and an ambidextrous safety and Raptor charging handle provide ease of operation. It has a 13.5 stainless steel barrel with Armalite tunable brake pinned and welded to make the external length 16.