I have two 13rd mags right now for my Glock but they are NFML and the +2 extenstion I bought says it will only fit FMLM. Is this for a reason? I am trying it on my mags but it doesnt seem to fit right unless I only use 13rds. When I get to 15 it seems like it will fall off the bottom with enough force or if slapped up into the gun. Anyone esle have this issue??
Not exactly sure but my guess would be that the NFML mags could flex which would allow the extension to fall off the bottom, thus dumping the spring, ammo, plate and base onto the ground. Not a good scenario. The metal lined mags would not bend/flex like that.