This is a Palmetto State Armory M4 Carbine Rifle. This Palmetto is chamber in 5.56x45 Nato with a 16" Free Floating Matte Black steel barrel. it has a 15" M-Lok Rail system with a picatinny top rail system for most scope mounts. This rifle is equipped with a standard A2 checkered pistol grip, standard adjustable 6 position stock with soft rubber stock pad, standard A2 muzzle flash hider. The receiver is stamped "Property Of The U.S. Govt. M4 Carbine". Includes: Magazine(s): N/A Capacity: N/A Features: Manufacture: Palmetto State Armory Model: M4 Carbine Series: AR-15 Caliber: 5.56x45MM Nato Barrel Length: 16" Full Length: 38.25" Length Of Pull: 14.25" Uppe Receiver Finish: Anodized Black Lower receiver Finish: Anodized Black Barrel Finish: Nitride Black Steel SKU# 327542 RR