Who ever designed the 45 Shield magazine base plate needs go outside and practice falling down! I just spend 20 minutes trying to get the damn floorplate metal catch to seat in plastic slide on floorplate. The metal guides that stick out on either side are brutal on your hands. Only take you 45 Shield magazine apart if you really need to. I normall do this with all of my magazines because I like to use magslick on the inside and outside of the tube. I did take a newer magazine apart and it seamed to go back together easier but it still way too much effort is needed.

my 2 cents