Colt Defense LE6920 Law Enforcement Carbine 5.56 NATO with Knight's Armament RAS II, Troy Folding Rear Sight, Magpul CTR Stock
This Colt Defense LE6920 is a Law Enforcement Carbine variant with LE-prefix serial and restricted magwell rollmark, finished in hard-coat anodizing on forged aluminum receivers. It is outfitted with a Knight's Armament RAS II free-float rail system with over-receiver bridge, a Troy Industries folding rear sight, and Magpul furniture. The rifle is property marked and retains its M4-profile, 16-inch barrel with 1:7 twist, carbine-length gas system, and A2 flash hider.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This firearm is in great shape overall. Minor scratches and small blemishes are present on exterior surfaces. The bore is clean and shiny.
What’s Included
- Rail System: Knight's Armament RAS II free-float quad rail with over-receiver bridge (P/N 22156/22384), installed
- Rear Sight: Troy Industries Folding Battle Sight (installed)
- Vertical Grip: GG&G vertical foregrip (installed)
- Rail Cover: Knight's Armament ribbed rail panel (installed)
- Stock: Magpul CTR adjustable carbine stock (installed)
- Pistol Grip: Magpul pistol grip (installed)
- Sling Mount: Push-button QD sling swivel installed in stock
- Sling Mount: Front sling loop adapter mounted on the A2 front sight base
- Magazines: 3x 30-round mags and 2x 20-round mags (USGI-pattern aluminum; mix of straight and curved bodies)
The LE6920 is Colt Defense's AR-15 platform Law Enforcement Carbine, identified by its LE-prefix serial and receiver rollmark that reads RESTRICTED MILITARY/GOVERNMENT LAW ENFORCEMENT/EXPORT USE ONLY. The lower also bears COLTS LAW ENFORCEMENT CARBINE CAL. 5.56MM and COLT DEFENSE HARTFORD, CONN. U.S.A., with the Rampant Colt logo. The flat-top upper features a T-marked Picatinny rail and shows Colt's C and the Cerro keyhole forging marks.
This rifle is property marked.
The 16-inch M4/Government-profile barrel includes the M203 step-cut, a 1:7 rifling twist, and a threaded muzzle with an A2 flash hider. It uses a carbine-length gas system and Colt's direct-impingement operating system. Nominal capacity is 30+1 with standard AR-15 magazines.
A Knight's Armament RAS II free-float rail is installed. Its over-receiver bridge provides free-float while maintaining a rigid interface, and it comes with a Knight's ribbed rail panel and a GG&G vertical foregrip. This setup offers durable, proven mounting surfaces across the handguard.
Sighting is handled by an A2 fixed front sight base with bayonet lug and a Troy Industries Folding Battle Sight at the rear. Furniture includes a Magpul CTR adjustable stock with friction lock and QD sling swivel, plus a Magpul pistol grip. A front sling loop adapter is mounted on the FSB for flexible sling placement.




