Mossberg 590A1 12g 20" 9SH CB PRK - Mil-spec construction. Parkerized finish of heavy-walled barrel with cylinder bore. Metal trigger guard and safety buttons. XS Ghost Ring/AR-Style sights. Black synthetic speed-feed stock which holds additional 4 rounds, and tri-rail forend. 20" barrel, 8 round magazine capacity, rail on the receiver, and bayonet lug.