All original (except for butt pad, butt pad retainer/sling mount and screw), non import marked British 303. Numbers on bolt and receiver match, no numbers on mag. "0" marked bolt head. There are two places where an owner etched a number, but they are light. One is on the right butt socket and the other on the bottom of the trigger guard. The butt pad pieces came from Numrich, as they were missing when I bought the gun.