Things You'll Need
Instructions
Separate the stock from your M1A rifle and locate the stripper guide pin on the left side of the upper receiver, in front of the pre-installed scope-mounting hole.
Align your pin punch with the stripper guide pin on the inside of the receiver and tap it out with your rubber mallet.
Place your Springfield scope mount on the receiver and align the mount retention screw with the rifle's scope mounting screw hole and the mount's front hole with the stripper guide pin hole.
Screw in the mount-retention screw and use your rubber mallet to tap in the replacement stripper guide pin -- included with the mount -- in the stripper guide pin hole.