I was wondering if the c9 flash hider is pinned or not. Trying to clean the crown of the barrel but, its not budging and i don't want to damage it if its pinned.
Thanks
No it's not pinned. Now just to ask why are you trying to cleaner the crown on your IUR? Kind of pointless no?
Maybe OP is building a die hard clone and wants to get that baby inspection ready.
Thanks guys, its my first ar15, bought it used thought the copper build up would affect the accuracy.



























