You can try that without going to the range
you should be able to take the dust cover off, insert the magazine with a couple of snap caps and see if it sits too low. You can insert the other magazines you have and compare. Or even cycle a few rounds through by hand with the dust cover off and the recoil spring removed so that you can see exactly what happens.
Nár Laga Día Do Lámh
Redding CA. Shasta County, NorCal