10.5” AR-15 pistol in 5.56 caliber. A classic caliber ion a slick platform., HomeDefense, Hunting or a fun Range Day. A beautiful, complete package ready to go, 5.56mm NATO (.223 Rem.) Caliber,Anderson Lower receiver, Slip Over Barrell Shroud,Tactical Foregrip,Flip-Up Rifle Sights,Magazine, Holographic Red Dot.