"The Wise Arms WA-15B AR-15 Semi-Auto Rifle takes the modern sporting rifle to new heights with enhanced components and build quality. The upper and lower are made from forged 7075-T6 aluminum and finished with Cerakote for superior corrosion resistance. The 16"" M4-profile barrel comes topped with an A2 flash hider and the same Cerakote finish as the receiver. The lower is equipped with a mil-spec lower parts kit and upgraded 3.5-lb. trigger spring kit. Mil-spec 6-position buffer kit and stock. Black nitride M16 bolt carrier group. Carbine gas system. 15"" M-LOK handguard. Includes one 30-rd. magazine and canvas case. Forged 7075-T6 upper and lower 16"" M4-profile barrel with 1:8"" twist and A2 flash hider Cerakote finish on receivers and handguard 3.5-lb. trigger spring kit Black nitride M16 bolt carrier group Mil-spec lower parts kit 15"" M-LOK handguard"