As some of you know, been tryin' to figure out the origin of a barrel I have. Well, took it to the gunshop with me to show a friend and his buddy spotted the mark. Me, I had never noticed it, though it's been there right in front of my eyes all along.
Check out the attached pic and see whatcha think.
"a crown" over the letters "BNP"
eta 1: Hmm, googled and found it's probably the "Birmingham House" proof mark. What in hades is a British proof mark doin' on a barrel made for a Russian weapon?
more pics of the barrel can be seen here: