The One Horse OH-15 is a complete modern sporting rifle chambered in 5.56 NATO/.223 Remington with a 16-inch barrel and 30-round detachable magazine capacity.One Horse OH-15 Complete Rifle (SKU: OH-OG02)Caliber: 5.56 NATO/.223 Remington16-inch barrel with 1:8" rate of twistSemi-automatic action30-round detachable magazineBlack synthetic stock and black metal finish36-inch overall length 7.15 poundsSwivel studs includedNo iron sights includedThis versatile modern sporting rifle offers reliable performance for recreational shooting hunting and sport shooting applications with quality construction and standard AR-15 platform compatibility.