PTS EPM Anti stuck bb catch

On some older PTS EPM Magazines it is possible for the catch that keeps the bbs in the magazine when not in the gun to get stuck in the back, which will cause your magazine to spill all remaining bbs once you take it from the gun. This is a small piece that fixes that.

This only happens on older EPM magazines, not the EPM1(which have other issues,but this one isn't possible with them), those have atwo piece top cover completely enclosing the bb cath. On newer EPM magazines PTS also seems to have made the pins that hold the magazine top inplace a bit longer, which also solves the issue and making it impossible(and unnecessary) to install this part. To test whether your magazine his anewer one or an older one  simply push the mag catch all the way in with a flat head screwdriver, on the old ones the catch will get stuck like in the pictures. Only one of my 5 magazines was the newer version, and I think I actually bought that one shortly before I bought the others.