This listing is for the Sig Sauer Model 556 rifle.The Sig 556 is a semi automatic rifle with a 16" barrel. It has features of both the AR-15 (rotary bolt with upper and lower receiver) and the AK-47 (piston operated). The rifle has a fold down front sight, an optics rail and a collapsible butt stock. The Sig 556 was made from 2007 until 2013. The overall condition is very good to excellent. The matte black finsh on the barrel and receiver shows little wear with the majority being some finish loss at the ejection port from ejected shells. The black synthetic hand guards with accessory rails and the collapsible butt stock are very good to excellent showing little wear. The bore is excellent, clean with strong rifling. One 30 round aluminum magazine and a 30 round P-Mag is included.