4/30/19 - This is a brand new, boxed SIG556 HOLO made by SIg Sauer. The gun is in mint condition and has never been fired. The gun comes in the original hard case (serialized to the gun), The original owners manual, and a child safety lock. It also comes with an extra rubber butt plate, a 30-round metal magazine (never taken out of the plastic), and an extra 30 to 40-round magazine - we're not sure how many it holds and we do not have the ammo to check. The rifle is gas operated, with a rotary bolt, has a paramilitary design, a 16 in barrel, high-performance flash suppressor. It has a standard rotary diopter sight system but comes with a Sig Sauer STS-081 Mini Red Dot Scope (never used - still in plastic). It also comes with the original scope box. It also has a collapsible and folding stock. FFL required.