Colt 14.5″ M4A1 SOCOM Upper


Availability: 4 in stock


New current production factory Colt M4A1 SOCOM upper, in the sealed blue Colt anti-corrosion bag. These have the heavier SOCOM profile M4A1 barrel, which is 1/7 twist with M4 feedramps. Barrel will be marked with Colt CAGE code 13629 MP 5.56 NATO 1/7.

2021 to current production.

Colt CAGE code 13629 marked above the forward assist. CAGE code will either be roll marked or dot matrix stamped.  Square or keyhole forge code.

Colt bolt carrier with MPC marked bolt. Carrier marked with a C.

Double lined Colt M4 handguards. Matech rear sight. Matech may or may not have the gold Picatinny logo.

These do not have a permanently installed flash hider and can only be installed on a NFA registered short-barreled rifle or machinegun.

Shown are pictures of a representative example of markings you will receive.  No choice of markings.  Colt RO921HB upper.

Update 4-15-24:  One upper placed into inventory.