Quote Originally Posted by Snowman1510 View Post
I bought the rifle a few years ago, I think they are surplus, but how would I tell? They haven't failed me yet but they are awfully hard to load I almost have to force them in. Not as easy as I see other people load their M1s. But up until now I have never had a problem.
Various enbloc codes

http://www.unc.edu/~djcancer/enblocs...ollection.html