Description Ruger SR-556 chambered in 5.56x45mm/.223 Remington with three, ten round removable magazines and a 16 3/4″ 1/9 twist featureless barrel. Gas piston operated with a four position gas regulator. Quad picatinny rail Ruger hand guard with Troy Industries rail covers. Flat top upper receiver with chrome plated bolt carrier and extractor. Adjustable front and rear Troy folding battle sights. SR-556 forged lower receiver with standard AR-15 controls and a Ruger/Hogue pebble textured rubber pistol grip. Polymer Ruger carbine stock that is pinned to the farthest position. Must ship to a FFL holder. Check local laws regarding “Assault Weapons” BEFORE bidding. May be legal in certain ban states (Not CT) due to featureless barrel, pinned stock, and ten round mags. Condition: Very Good with light scratches and wear from handling and operation. Clean bore with strong rifling. Barrel Length: 16 3/4″ Serial: 591-06155 Manufacturer: RUGER Year: 2013 Caliber: 5.56x45mm NATO Model: SR-556 Book# 02629