The Colt M4 LE6933 EPR (Enhanced Patrol Rifle) upper receiver group delivers a ready-to-run upper assembly built on a proven platform. This 11.5-inch barreled upper comes complete with a bolt carrier group and charging handle, so you can mate it directly to your AR-15 lower receiver and get to work. It's the kind of no-nonsense upper that works equally well for home defense, short-range duty work, or a compact AR build where barrel length matters.

The heart of this upper is a chrome-lined 11.5-inch barrel with 1-7 twist rifling, button-rifled for accuracy and finished in phosphate for durability. The Centurion Arms free-float M-LOK handguard keeps the barrel isolated from the fore-end, supporting consistent accuracy and letting you mount accessories exactly where you need them. Chrome lining extends barrel life and handles sustained fire without complaint—a feature you'll appreciate if this upper sees regular use.

Everything is assembled and ready to function; the included bolt carrier group and charging handle mean there's no hunting for compatible parts. Just install a lower receiver, add a magazine, and you're operational. The 11.5-inch barrel strikes a practical balance: short enough for tight quarters or vehicle work, yet long enough to maintain velocity and sight radius that makes the rifle genuinely useful at realistic distances.

The Colt M4 LE6933 EPR (Enhanced Patrol Rifle) upper receiver group delivers a ready-to-run upper assembly built on a proven platform. This 11.5-inch barreled upper comes complete with a bolt carrier group and charging handle, so you can mate it directly to your AR-15 lower receiver and get to work. It's the kind of no-nonsense upper that works equally well for home defense, short-range duty work, or a compact AR build where barrel length matters.

The heart of this upper is a chrome-lined 11.5-inch barrel with 1-7 twist rifling, button-rifled for accuracy and finished in phosphate for durability. The Centurion Arms free-float M-LOK handguard keeps the barrel isolated from the fore-end, supporting consistent accuracy and letting you mount accessories exactly where you need them. Chrome lining extends barrel life and handles sustained fire without complaint—a feature you'll appreciate if this upper sees regular use.

Everything is assembled and ready to function; the included bolt carrier group and charging handle mean there's no hunting for compatible parts. Just install a lower receiver, add a magazine, and you're operational. The 11.5-inch barrel strikes a practical balance: short enough for tight quarters or vehicle work, yet long enough to maintain velocity and sight radius that makes the rifle genuinely useful at realistic distances.