Alright, my camera doesn't seem to be able to focus closely enough to show the detail in any meaningful way so I'll do my best to describe how I "adjusted" my mags.
First off, look at the rectangular opening on the magazine about a third of the way down from the top of the magazine lips. The one in question and the only one that matters is the opening on the opposite side of where you press the mag release button. From here on out I'll refer to the opening as the "rectangle" and it will be relative to the magazine laying on a flat surface, with the front of the mag facing to your right.
Essentially what I observed from disassembling the mag and inserting the empty mag body into the frame was that the mag catch/release protrusion only contacted the back third of the upper portion of the rectangle, and just barely at that. Also, the mag release would not return to it's fully extended position while the magazine was in the frame. So my two issues were/are: Not enough material between the mag catch and magazine opening in contact, and the opening on the magazine not in the correct position to allow the mag catch to fully extend back to it's normal resting position.
The first adjustment is to take a smooth round tool, such as a small tapered punch, and gently use it to pry out the upper portion of the rectangle. In my case it was only necessary to create a lip or protrusion at the back half or left upper side of the rectangle.
Be careful to not create too large of a lip on the opening as the magazine itself is fitted very tightly into the frame and even a small lip will cause a fair amount of resistance. Also, don't pry too aggressively as the magazine alloy is very brittle and will crack as opposed to bending. Don't worry too much if this causes a small dent at the bottom of the rectangle. This is not an issue as long as the lower dent isn't overly large. If it becomes too large the mag may rattle in the frame, but does not do so in my case.
The second adjustment is to remove a small amount of material from the front or right side of the rectangle. I used a small steel file to remove approx 1mm of material, then finished that up with a very fine diamond file to smooth out the opening. Lastly I reblued the areas that I had removed the material from. It's best to do this with the magazine disassembled as there will be metal particles to clean up, and we don't want them embedded in the magazine follower.
Let me know if I need to clear this up for you.
Now, I'm still under the impression that it's not the magazines, but the mag catch itself that is the main issue. I think mine was either cast poorly, or perhaps it was hand finished a bit too much and too much material was removed. I'm going to purchase a couple of factory mags and see what happens. If they do the same thing, I'll be purchasing a new mag catch and install it myself.
Justice
