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
 
Includes:
- 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