The easiest mod ever. 1 screw, remove and replace. Reduces accidental magazine ejection. Do this on a table
, as parts will fall out during the swap.
The original release button, sitting a few millimeters above the grip;
Remove #1 Phillips screw. When you do this, the actual lock slide will drop out the back;
Remove button. A small spring will be found underneath. This spring pushes the button back out, and through the screw, pulls the mag lock back in. Here is the original button compared to the new, and the lock mechanism to the side;
Use your finger to hold the magazine lock piece up from underneath, and place the button back over the spring. Tighten with original phillips screw. Here is the new profile of the release button;
That's it! Thanks to John S. @ Kingman for getting the button out to me.