Damn mag catch cover plate, Was anyone elses poorly fitting?
Yes. During sandblasting I didn't realize the the frame part is dove tailed to accept the plate and mine got sloppy. Rather than risk it popping out, I very carefully applied a very small amount of JB weld back into the groves that accept the plate. I was very careful in using just enough to refill the dovetail and ensured no JB weld was left on the inside of the plate to interfere with the mag release / spring. I cleaned any excess JB weld off with WD40. I believe I am not the only one who used this fix. Perhaps yours does fit but you have to slide it in from the side?