INDICATORS ON COLT M16A1 FOR SALE YOU SHOULD KNOW

Quite a few rifles had been rebuilt, especially Vietnam period rifles.  Usually the barrels ended up replaced.  Some samples of markings discovered on replacment barrels incorporate:    The "C" around the barrel would point out a chrome chamber only barrel. But AFAIK, Colt marked the "C" up close to the muzzle on their own early barrels, not un