The BCM® M4 Upper
Receiver Assembly is easily our favorite upper receiver. The fit and finish on
these are always top notch. Not to mention these upper receivers have a
slightly tighter barrel extension bore which is said to add in accuracy. All
the components in the BCM® M4 Upper Receiver Assembly are built to Military
Specifications. It is advised that you follow the included instruction on how
to properly install the barrel into the upper receiver assembly.
Please Note: Forge
marks may differ from what is pictured. Throughout the years we have received
many different forge marks on Bravo Company Manufacturing® receivers.
"Bravo Company Manufacturing and BCM" is a federally registered
trademark of Bravo Company MFG INC.. Neither Classified Defense, nor this site
is affiliated in any manner with, or otherwise endorsed by Bravo Company MFG
INC.. The use of "Bravo Company Manufacturing and BCM" on this
website is merely to advertise the sale of tools and/or part used on Bravo
Company MFG INC. components.