GETTING MY COLT M16A1 RETRO REISSUE TO WORK

This upper receiver traces its origins back again some six several years to guns Colt developed to the SCAR (Special Operations Forces Overcome Assault Rifle) application in the U.S. Distinctive Functions Command (SOCOM). It really is meant to obviate the need for any separate many-rail handguard for mounting equipment, affording best alignment of