COLT M4 CARBINE MAGPUL SL GRAY THINGS TO KNOW BEFORE YOU BUY

Charlie's offers new higher receivers, the manufacturing unit rifle get-offs have exam fired by Colt.  Upper receivers are just take-offs from out from the box rifles and likewise are purchased as upper receiver assemblies.  Both equally are 100% similar.  We don't ship in Colt manufacturing unit box.You plus the Many others don’t comprehend w