5 SIMPLE TECHNIQUES FOR COLT M16A1 RETRO REISSUE

This upper receiver traces its origins back again some 6 years to guns Colt made for that SCAR (Special Operations Forces Overcome Assault Rifle) application from the U.S. Specific Functions Command (SOCOM). It is actually made to obviate the need for any individual many-rail handguard for mounting accessories, affording ideal alignment of add-ons