Colt LE6920CK 5.56mm NATO AR-15 Upper Receiver Assembly Conversion Kit, 16.1 Barrel, 1:7 Twist
This Colt LE6920CK upper receiver assembly conversion kit is a complete rifle upper in 5.56mm NATO built around the 6920 series pattern. It features a flat-top upper with a full-length Picatinny rail, a chrome-lined MP tested barrel with a 1:7 twist, and a direct impingement operating system. The package includes a Colt-labeled factory box, manual, and both the charging handle and bolt carrier group.
Condition
Overall Condition: Excellent
Bore Condition: Clean and shiny.
Mechanics: Mechanically sound. (As with all firearms, a thorough cleaning and inspection is recommended before use.)
Cosmetics: The finish shows minimal wear.
Specific Condition Notes: The upper is in excellent condition. The bore is clean and shiny.
What's Included
- Colt factory box labeled "Genuine Colt Upper Receiver Assembly" / "Colt Upper Receiver Assembly Conversion Kit" (LE6920CK)
- Colt safety/instruction manual ("COLT AR-15 Semiautomatic Rifles and Carbines")
- AR-15/M16-pattern charging handle
- AR-15/M16-pattern bolt carrier group (BCG)
This LE6920CK upper is configured with a 16.1 barrel and a chrome-lined, MP tested bore. The 1:7 twist rate is clearly specified, making this a straightforward choice for buyers looking for a Colt 6920-series upper with factory-identified markings and packaging.
The receiver is a flat-top design with a full-length Picatinny rail for mounting compatible rail accessories. It also includes a forward assist and an ejection port cover, keeping the configuration consistent with a traditional AR-15 upper receiver assembly.
Up front, it uses an A2-style fixed front sight base and a folding/flip-up rear sight that is MBUS marked. The handguard is a two-piece, carbine-length polymer set with a ribbed exterior and bottom ventilation holes.
The barrel is threaded and fitted with an A2-style birdcage flash suppressor form factor. The upper is finished in matte black, and the included box is marked "CAL 5.56 MM" with the model/kit marking LE6920CK.