This new Bushmaster ACR rifle fires the .223 round. It has a 16.5" cold hammer-forged barrel with an overall flat dark earth finish. This semi-auto rifle has an adjustable, two-position gas-piston-driven system, for firing suppressed or unsuppressed. This rifle has a picatinny style optics rail and ambidextrous controls including magazine release, bolt catch & release, safety, and non-reciprocating charging handle. This rifle has a collapsible side folding stock, adjustable cheekpiece, and modular grip storage. This rifle comes with Magpul MBUS front/rear flip sights, hardcase, sling, manual, and one 30 round magazine.