I have an Anderson AM-15 lower, and a few 10 rounds, 10/20, and 10/30 body Magpul Pmag Gen M3 magazines. The 10 and 10/20 rounds drop freely out of the lower; however, with the 10/30 one, I had to pull it out.
Any suggestion to fix this issue? It looks like some sanding work needs to be done on either the mag or magwell
Mag won't drop free: Anderson AM-15 lower + Magpul Pmag Gen M3 10/30 rounds body