Colt M4 LE6921 Carbine Upper Assembly, 14.5" 1/7 CL BBL, 5.56X45 NATO *NEW in BOX*

Colt M4 LE6921 Carbine Upper Assembly, 14.5" long, 1 in 7 chrome lined barrel, 5.56X45 NATO *NEW in Box*

Sold Individually.

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 OR Keyhole forge marking.
Chrome lined Barrel is marked 13629 MP 5.56 NATO 1/7.
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 style barrel, 5.56 NATO with M4 feed ramps and 1 in 7 twist rate.
- 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