From the legendary name Colt comes the AR-15 to set the standard for all others. The Colt AR-15 Carbine 9mm features a 16.1\" barrel with a 9mm caliber, this rifle is extremely accurate with little muzzle climb, the lower recoil of 9mm ammunition also allows for ease of training with this rifle and improves accuracy even at the highest level. This rifle comes w/ a collapsible buttstock, a select fire weapon system for various uses and a modular rail system for easy mounting of any ancillary devices.