Ruger 19121 PC Carbine 9mm Luger 16.12" 17+1 Black Nitride American Flag Cerakote Threaded Barrel. The Ruger PC Carbine features American Flag Camo with an integrated Picatinny-style rail and in Type III hard-coat anodized for maximum durability. Features a threaded barrel with included thread protector that allows for use of standard muzzle accessories; interchangeable magazine wells for use of common Ruger and Glock magazines. Ships with SR-Series pistol magazine well installed and an additional magazine well accepting Glock magazines is included; accurate sighting system with adjustable ghost ring rear aperture sight and non-glare, protected blade front sight; Soft rubber buttpad with spacers allows the rifle to be properly sized for different shooters or varying levels of outerwear or defensive gear; durable glass-filled nylon synthetic buttstock features a proprietary texture for enhanced control and an integral sling mount for rapid sling attachment; light, crisp trigger pull with minimal overtravel and positive reset utilizing proven 10/22 trigger components and the heavy contour barrel provides consistent accuracy, while barrel fluting sheds unnecessary weight and allows for quick handling. Includes one SR-Series pistol magazine, three 1/2" spacers and hex wrenches for rear sight adjustment, buttpad spacer adjustment and charging handle removal.