I'm picking up a Loaded M1A this weekend and I'd like to put a lugged flash suppressor on her. I understand the whole reamed vs non reamed USGI ones available. I'd like to stick with a reamed NM lugged one. I was given this by a friend but he has no idea of its ID. What can you tell me from the pictures if anything. On the front sight it looks like it is stamped NM062
Thanks
Thanks