Lightweight high strength polymer upper and lower receivers. Removable 25 round magazine. Adjustable front and rear sights. AR15/M4 style features and controls. A3 style flat top upper receiver. Quad rail handguard accepts all 1913 Mil. Std. rail adaptable accessories. A2 pistol grip – receiver will accept most standard after-market AR15 pistol grips. Six position collapsible stock – receiver extension accepts Mil-Spec carbine stocks. Functioning charging handle. Two position receiver mounted safety. Bolt holds open on empty.