I encountered an odd event with one of the 3 magazines I have for my R9s, and I'd like to know if anyone else has as well.
In an unpredictable fashion (sometimes it would happen, sometimes not), the floorplate would get pushed back (not forward) when firing. Yep--back, not forward. The front lip of the floorplate wound up about 1/16" back from the front edge of the mag body. This made extracting the empty mag impossible until I forced the floorplate forward to its design position. Only thing I can think of is that the crimp along the sides of the floorplate are not tight enough.
Any thoughts from any mag gurus out there?