Originally Posted by gerbalfarm
does anyone know if Magpull PMAGs will work with this?
It should be fine, I have a PMAG coming in the mail next week. I will try it on my adapter. Should be no reason why any TM compatible M4 magwell mag won't work.
That said, these adapters are fickle and often they are loose with certain mags and need to have modifications to stop certain mags from jiggling or not feeding.