No biggie.
Take the bottom metal out again and re-install it, checking for fit/function of the floorplate as you go. You might have to push the guard back a bit as you tighten it and the forward part towards the front as well. The middle screw should just be slightly snug.
Mine did the same thing not long ago. Took a little fiddling, but I got it back. M70s can do the same thing.
Last edited by Pappy348; 04/23/15.
