The Colt Enhanced Patrol M4 Carbine is a semi-automatic, direct gas impingement rifle chambered in 7.62x39mm, engineered to deliver the hard-hitting ballistics of the popular intermediate cartridge within a duty-grade, modernized AR-15 architecture. This tactical firearm incorporates a 16.1-inch chrome-lined, button-rifled barrel with a 1:12" twist rate topped with a standard A2 flash hider, built onto mil-spec forged 7075-T6 aluminum upper and lower receivers finished in a matte black Type III hardcoat anodizing. Operating on a smooth, carbine-length gas system, the premium EPR layout features a lightweight, free-floating Centurion Arms M-LOK handguard that maximizes modular mounting space while ensuring optimal barrel harmonics. The service-driven configuration is heavily upgraded right out of the box, outfitted with an ambidextrous safety selector, a rugged B5 Systems Bravo 6-position collapsible buttstock, a B5 Type 23 P-Grip, and premium low-profile folding Magpul MBUS Pro all-steel iron sights. The rifle feeds from a specialized, heavy-taper metal AR-style magazine specifically designed to handle the steep case geometry of the 7.62x39mm round, delivering a standard capacity of 30+1. Colt Enhanced Patrol M4 Carbine 7.62x39mm 16.1" Bbl Semi-Auto Centurion Rail Magpul Pro Sights B5 Buttstock Matte Black Rifle CR6762-EPR