That's and early SN at a time when they were using all USGI parts, so I suspect you will find other barrel markings under the handguard. I assume the USGI barrels were chrome lined. Nice find all the same. Did you get it for a fair price?Maybe I should define my question a little better.
I does shoot great but I am curious as to the year of manufacture and if the barrel would be chromed lined.
Thank You