Grant, my lower is a PWA, and I have heard that they had tight magwells. I had an Orlite mag and it was tight, too.
I did sand them. All I did was smooth over the front where the casting plug spot was and hit the two tabs on the back where the mag starts to curve and the tabs act as a contact point for the magwell. The sides were fine. I did some checking with calipers before doing any alteration. This way I know I didn't compromise the mag body at all. They drop free now. I took one apart and looked inside. There's just no way for the cartridges to get out of line, and the follower tilts even less than their follower in a standard mag does. If they shoot like they look and feel, I'll definately be getting more soon. BTW, these are dated 7/07.
NRA Life, SASS#40701, Glock Advanced Armorer
Gunsmith for Unique Armament Creations LLC, 07/SOT
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