Colt M4 LE6921Upper, w/ Bolt & Carrier Assembly w/Charging Handle, 14.5" 1/7 CL BBL, 5.56X45 NATO *Excellent / Blemished / IN BOX*

Colt M4 LE6921 Carbine Upper Assembly, with bolt and carrier Assembly & Charging Handle, 14.5" long 1/7 Chrome Lined barrel, 5.56X45 NATO, in *Excellent / Blemished IN BOX*  B-Model.

Sold Individually (You will receive the one pictured).

Get one of these high quality upper assemblies for your build!
Colt manufactured flat top upper receiver with M4 profile barrel.
Includes standard oval handguards.
Receiver marked with Square forge marking.
Chrome lined Gov't profile barrel is marked 13629 MP 5.56 NATO 1/7.
The bolt, carrier, and charging handle show moderate signs of use, grime, and carbon from multiple factory testings.
Light wear in finish on deflector.
This gun has passed all safety and testing condition from the factory.
Packed in factory box (pictured)

This Upper Assembly includes:
- Colt manufactured M4 type flat top upper, case deflector and forward assist assembly.
- A2 style birdcage flash hider.
- 1/2x28 muzzle threading.
- Colt manufactured M4 Gov't profile barrel, 5.56 NATO with M4 feed ramps and 1 in 7 twist rate.
- Colt manufactured bolt and carrier assembly with charging handle.
- 14.5" barrel with A2 type birdcage flash hider, and chrome lined bore.

NOTE: Prior to installing this length of barrel into a rifle a NFA Form 1 must be completed and returned approved.
A 14.5 Inch length barrel installed into a shoulder fired firearm is a "Short Barreled Rifle" under the NFA. 

Parts must be inspected and tested by a qualified and competent gunsmith or armorer before use in a firearm.
Not all firearm parts are interchangeable; use of new parts without proper knowledge could cause a firearm to malfunction
and cause property damage, injury or death.

Colt Part #: SP401165 B-Model