This competition rifle features a 17 in. long built-in Arca Elite System (AES) rail, 10 M-LOK mounting slots at 3, 6, and 9 o’clock, a barricade stop, the PRO folding tool-free adjustable rear stock, a multi-position adjustable trigger guard, tunable height ambidextrous extended magazine latch and rubberized vertical grip. Popular optional items such as M-LOK weights, right/left thumb rest, and full-length night vision bridge can be purchased separately.