Magpul don't make airsoft pmags anymore so the PTS EPM mags are the closest thing considering they made the original airsoft Pmags for magpul IRC.
OK my bad, so not specifically Magpull and not specifically pts. Any polymer magazine. That works well and is a reasonable price. I have already killed two original pmags, at £20 a pop they are overpriced imo. So any other good polymer mags?
That's not entirely true. I have half a dozen Dytac invader mags and they all work fine. As with all of them though they may not suit all guns...
one just wont feed at all, and on the other one the glue split holding the two shell halves together.