Numerous rifles had been rebuilt, Specifically Vietnam era rifles. Generally the barrels were changed. Some samples of markings uncovered on replacment barrels contain: The barrel is usually a 1970's or 1980's, simply because that may be once the C FSB was used. The aluminum barrel block markings are standard to https://coltpython6forsale34344.wikipowell.com/5848605/colt_python_6_for_sale_for_dummies