no4 mk1 bolt heads marked m1r on the side

Discussion in 'Enfield Rifles' started by Rick Brown, Dec 31, 2016.

  1. I sure hope someone knows something about this,I have several bolt heads for a no4 mk1 that I bought at a gun show, they look great but some don't have a size no. stamped on them all they have is a stamp on the side that says m1r or m/r can't really tell which it is, I'd just love to know what this means because I'm thinking it means machine reject but I hope not because they look great. Any help here would sure be appreciated!