Ar 15 custom build. 4 1/2 inch barrel, pistol brace ( can shoot with one or 2 hands, categorized as a pistol.) AR 15 upper and pistol lower. Chambered in .223 or 5.56. The optic is just a red dot. Upgraded muzzle as well but don’t know much abt the muzzle. Open to trades. Upper is from palmetto state.