Upper Receiver Group, Colt M4-SE

Colt 14.5 inch M4 barrel assy developed for US Army - XM4 program.

Creating a nearly perfect copy of the US Military Colt M4 Carbine upper receiver group. 
Our custom SA compensator is pinned/welded/machined to create a street-legal 16 inch barrel assy.
The precision fit, machine work, and finish are a work of art.
Contains all Reliability Package (RP) upgrades.

This is an upper receiver group only.  It does NOT contain the bolt group or charging handle assy.

Bolt Group Upgrade with Charging Handle Assembly

H2 Buffer Assy recommended.