I am the only one that has handled the firearm. I have never inserted the mag backwards. I have also never slammed the mag home, this is from casually inserting and removing the magadmittedly I am pretty noob but that looks like someone tried really hard to jam the wrong mag in or maybe backwards. Drunken buddy maybe???
I micd the mags and they are straight and the same size. you can see though that contact is made when the mags are inserted. The polymer wear is like the mags rock back into that area when firedHow about your mags, could one of them on the round count holes be slightly convex instead of the norm being slightly concave? They line up exactly on the ribs where yours is tore up.
Haha I was thinking the same thing Speed well! I am more concerned about the frame warp then the wear on the rails to be honest. I dont want the frame to self destruct on itselfWith that I can see how it could happen with the mag starting in with the bottom of the mag a little bit foreword before it squares itself up. That's why the damage is only at the very bottom of the mag-well, that's just ware due to your form of mag changes. Looks as if you should be quite efficient at a speed reload. :?