Colt’s Manufacturing M4 Carbine 16″ 5.56/.223 Complete Upper

Original price was: $829.00.Current price is: $821.18.

Out of stock

Get notified when this product is back in stock

SKU: LE6920CK UPC: 098289035295

Product Description

The Colt LE6920CK is an M4 Carbine Upper Receiver Assembly offered in a 16.1″ barrel configuration. The barrel is chrome lined and MPI tested. It features Colt’s double heat shielded handguard for superior heat dissipation and a fixed front sight post with a bayonet lug.

  • Caliber: 5.56/.223
  • Twist Rate: 1/7
  • Barrel Length: 16.1″
  • Barrel Profile: Gov’t
  • Barrel Threads: 1/2 x 28
  • Material: Mil-Spec chrome lined MP tested barrel
  • Gas System Length: Carbine
  • Gas System: DI
  • Muzzle Device: Birdcage style – A2 Flash Hider
  • Flat top receiver
  • Cage Code Marked Upper
  • Colt C Marked Bolt Carrier Group
  • Handguard: M4 Style – Double Heat Shield
  • Front Sight: Fixed Adjustable front
  • Rear Sight: Adjustable for windage and elevation


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




Technical Information


5.56 NATO / .223 Remington

Barrel Twist


Thread Pitch

1/2 x 28



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