Colt's Manufacturing CTCR6920-EPRSDhanced Patrol Rifle), Semi-automatic Rifle, AR, 223REM/556NATO, 16.1 Barrel, Threaded 1/2X28, Anodized Finish, Black, Polymer Grip and Stock, 30 Round, 1 Magazine CR6920-EPR The Colt Enhanced Patrol Rifle (EPR) is the next evolution in the world's most dependable, thoroughly field-tested patrol rifle. Featuring an extended handguard that accepts modular rail segments for mounting a wide variety of pro-grade optics, lighting, and ergonomics-enhancing accessories, as well as the highly durable Magpul MBUS Pro Series front and rear back up sights and B5 Bravo buttstock. The Colt EPR reestablishes the Colt AR-15 as the finest tool for local, regional, and national law enforcement agencies.