THE BASIC PRINCIPLES OF COLT XM177E2 RETRO CARBINE

This higher receiver traces its origins back some six a long time to guns Colt generated for the SCAR (Particular Operations Forces Battle Assault Rifle) application from the U.S. Particular Operations Command (SOCOM). It can be meant to obviate the necessity for a separate several-rail handguard for mounting equipment, affording great alignment of