These pictures do not show that I used a drill press as a pin press. Chuck the drift pin in the drill press with the motor of and you can use the drill wheel to precisely lower the pin. Saves hammering.
Step one done
Step two is to remove the magazine follower pin. With the base plug out you remove the spring and move the follower down to line up with the removal hole in the magazine sleve, whiich also aligns with a hole in the GT base plate fixture.
Press the pin out
Step two done and the mag is gutted
Step three on next email