Open Box Colt’s Manufacturing M4 Carbine EPR Upper – 11.5″

Used/Open Box Item: This product is not eligible for return. Click to learn more about used products.

Original price was: $1,049.00.Current price is: $839.20.


Product Summary

Built for the demanding use of those who protect our communities every day, the Colt Enhanced Patrol Rifle Upper (EPR) is the next evolution in the world’s most dependable, thoroughly field-tested patrol upper.

  • Barrel: 11.5″
  • Caliber: .556 NATO
  • Finish: Matte Black
  • Sights: MagPul MBUS Pro Front & Rear
  • Rate of Twist: 1-in-7″
  • Picatinny top rail.
  • M-LOK on the 3, 6, and 9 o’clock side of the rail.
  • Complete BCG.
  • A2 Flash hider.
  • Charging Handle.
  • Centurion CMR M-Lok Handguard.
  • 11.5″ Barrel.


Technical Information

Color / Pattern



Firearm Compatibility

Catalog Location

California Prop 65 Warning

WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information visit