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Colt LE6921-EPR 14.5 inch Enhanced Patrol Rifle Upper Receiver Assembly
Colt LE6921-EPR 14.5 inch Enhanced Patrol Rifle Upper Receiver Assembly

Price: $1,100.00
SALE: $920.00
Savings: $180.00

Stock Status:In Stock


Colt LE6921-EPR 14.5 inch Enhanced Patrol Rifle Upper Receiver Assembly


The Colt LE6921-EPRCK Upper Assembly is used on the LE6921-EPR Enhanced Patrol Rifle. This upper receiver allows for a free-floated barrel and also features a full-length Centurion MLOK Handguard. The barrel is Colt's standard 14.5" chrome lined M4 barrel with an A2 flash hider up front.

Package Contents

  • Colt LE6921-EPR Complete Upper Assembly
  • Complete M4 Full Auto Bolt Carrier Assembly
  • Charging Handle
  • Manual


  • 14.5-Inch 1/7 twist Mil-Spec chrome lined MP tested barrel
  • Unique direct gas operating system eliminates the conventional operating rod and results in fewer and lighter components
  • Accommodates the full range of 5.56mm ammunition, including the NATO M855/SS109 and U.S. M193, utilizing a rifling twist of 1 turn in 7"
  • Straight-line construction disperses recoil straight back to the shoulder, increasing handling capabilities, especially during repeated fire
  • Cartridge case deflector allows easy operation in both right and left handed shooting positions for increased tactical applications
  • Muzzle compensator further reduces muzzle climb and helps eliminate flash and dust signatures
  • Ejection port cover protects the chamber from dust and mud
  • Field strips easily without special tools for simple field user maintenance
  • Flat top receiver allows for removable carrying handle and easy mounting of accessories
  • High strength materials for greater comfort and effectiveness
  • Caliber - 5.56mm
  • Gas Direct system, Locking bolt
  • Flash Hider

Suggested Accessories:
Colt Carbine Lower Receiver Assembly Magpul PMAG 30-Round GEN M2 AR/M4 Magazine Colt AR15/M16/M4 30rd USGI Aluminum Magazine Colt AR15/M16/M4 20rd USGI Aluminum Magazine
SALE: $500.00

SALE: $9.00

Price: $25.95

Price: $25.95

Colt M4 Carbine Lower Receiver Assembly Magpul MAG571 PMAG 30-Round GEN M2 .223 AR15 Magazine Colt AR15/M16/M4 30-round USGI Aluminum Magazine Colt AR15/M16/M4 20-round USGI Aluminum Magazine

Average Rating: Average Rating: 4.5 of 5 4.5 of 5 Total Reviews: 2 Write a review »

  0 of 0 people found the following review helpful:
5 of 5 Upper for Colt M4 SBR July 13, 2020
Reviewer: steve from Loganville, GA United States  
Bought for an SBR Colt M4 lower.  Took to range for forst time this weekend, much more accurate than I thought it would be for a 14.5" barrel (only 100yds).  No jams, even suppressed.  Like the Magpul metal popup sites, and really impressed with free floated barrel with Centurion Arms Mlok handguard.  If you want "100% Colt," a great buy.  Very impressed.

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  1 of 1 people found the following review helpful:
4 of 5 LE6921-EPR May 9, 2020
Reviewer: Julian from Illinois  
Just received this upper and it is really nice. It is a Colt Cage Code Keyhole Receiver and Cage Code barrel. The Centurion Arms MLok rail uses YFS screws which isn't a big deal but I plan on swapping them out. The finish on the receiver itself looks like Knights Armament did it, there is a purple-ish tint to it and looks like the RAS rail on my issued rifled when I was in the Marines. Their seems to be some sort of issue with the coating itself because it looks like stretching in the coating around the forward-assist.
The BCG: the carrier is not C marked, the Bolt is MPC marked with no white-dot.
The charging handle has no markings on it either and the barrel, as mentioned, is Cage Code with MP 1/7 marked carbine length and the gas block is a shaved FSP and a standard birdcage.
The included Magpul Pro backup iron sights are pretty solid.

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