Colt 6920 5.56mm Upper Receiver Assembly | 16" Barrel

$800.00 $595.00
(64 reviews)
Current Stock:

The Colt LE6920CK Upper Receiver Assembly feature's Colt's upper receiver. This upper receiver allows for a free-floated barrel and also features a gas-block mounted fixed front sight post with bayonet lug and a backup rear sight. The barrel is Colt's standard 16.1" chrome lined M4 barrel with an A2 flash hider up front.

Package Contents

  • Colt LE6920CK Complete Upper Assembly
  • Complete M4 Full Auto Bolt Carrier Assembly
  • Charging Handle
  • Fixed Post Front Sight
  • Folding Rear Sight
  • Manual


  • 16 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
  • Front Sight - Adjustable front
  • Rear Sight - Target sight adjustable for windage and elevation
  • Flash Hider


  • 3
    6920 upper

    Posted by Drew Shirk on 24th Feb 2024

    My upper came in generic white box with 6920 sharpie written on it. It was missing manual and rear sight. Arms unlimited sent me missing rear sight. I would have liked it in original Colt box with manual and sight. 3 stars

  • 5
    Colt CR6920 upper rocks

    Posted by Doc on 23rd Mar 2023

    Several years ago, I had a complete Colt CR6920 and sold the upper to make room for an aftermarket upper with a different barrel. I recently decided to restore that rifle to its original Colt 6920 configuration. This is the real deal with all the expected CR6920 markings, chrome lined barrel, MPC bolt, etc. Also, once I put a Colt carry handle on it, it turned out to already be zeroed!

  • 3
    Outstanding product, lucky to be able to procure i

    Posted by King of colts on 29th Sep 2022

    Great people with a great attitude taking care of there customers in trying times

  • 5
    Colt LE upper

    Posted by KM88 on 29th Sep 2022

    Very satisfied with this company prompt processing/shipping times product came as described genuine colt parts will continue to do business highly recommend

  • 5

    Posted by Miguel Benavides on 26th Jun 2022

    Love my Colt 16 in upper. It's the first Colt product I've ever owned. Definitely want to get a lower to match

  • 5
    Great Upper

    Posted by PatrickLL on 29th May 2022

    This upper is as advertised. Complete Colt OEM ready to go. Price can’t be beat either!

  • 5
    Colt upper

    Posted by Eric Witcher on 14th May 2022

    You can't go wrong with Colt original parts.

  • 5
    Colt Carbine

    Posted by David Leidolf on 13th May 2022

    Nice upper and I caught it on sale at a great price.

  • 5
    I Would Recommend This Merchant

    Posted by Pete Philpott on 10th May 2022

    Product ordered was exactly as described and shipping was extremely fast. Since this order, I have made another order and I am completely satisfied with transactions.