It’s some kind of Glock17 barrel but don’t know anything else about it. A guy picked it up in a trade and now he’d like to trade it. I might have just the thing he might want if this barrel is good to go.
Is that a Storm Lake barrel?
Is it a 4.49" barrel?
I was thinking an old polished stock barrel.
I would guess the “NM” would stand for National Match.