Colt Firearms LE6933 Enhanced Patrol Rifle II Complete Upper Features The Colt Firearms LE6933 Enhanced Patrol Rifle II Upper is chambered in 5.56 NATO and built around an 11.5 Colt spec CrMoV steel barrel chrome lined for extended service life and easier cleaning after heavy use. A mil-spec chrome lined bolt carrier group operates on a carbine-length direct impingement gas system giving the upper the same reliable function found across Colt s broader carbine lineup. This upper fits standard AR-15 lower receivers letting builders drop it onto an existing lower for a compact patrol rifle configuration. The EPR II blends proven TDP components with certified mil-spec materials and coatings ensuring consistent quality from unit to unit. An M-LOK compatible handguard allows the easy addition of lights grips and other accessories without extra adapters or rail sections. The included HUXWRX QD 556 flash hider reduces visible muzzle flash and attaches via a quick-detach mount for easy removal or suppressor use. Finished in a black anodized coating the upper resists wear and corrosion through demanding use in patrol and duty environments. Built to Colt s established manufacturing standards the Colt Firearms LE6933 Enhanced Patrol Rifle II Upper is for sale at GrabAGun for shooters assembling a reliable compact 5.56 patrol rifle. Colt Firearms LE6933 Enhanced Patrol Rifle II Complete Upper Specifications Manufacturer: Colt Firearms Model: LE6933 Enhanced Patrol Rifle II Upper Type: Complete Upper Caliber: 5.56 NATO Barrel Length: 11.50 Barrel Description: Chrome Lined Barrel Finish: Black Anodized Twist Rate: 1:7 Handguard: M-LOK Accessories: HUXWRX QD 556 Flash Hider Compatible Hosts: AR-15 Lower Receivers Color: Black Finish: Anodized Available At: GrabAGun