I noticed a decent amount of play on my mags and drum. I can rock it back and forth, pivoting on the front catch of the mag/drum with up and down movement at the back (closest to the trigger). I think I need to replace my mag latch with something a little longer. I know SOME play is good, but this is too much. Anyone know where I can get a longer mag latch that can be ground down to the correct height? Or maybe a better/different design latch?