Does the job very well
Easy to disassemble, and then assemble the two MPX Gen 2 30rd mags. Easy to stagger the mags to clear the ejection port area vertically and horizontally. On the other side, switching the staggered mags, the couple is spacing the mags enough so that the left mag now clear the left side of the MPX frame. The only thing left to see if the tightening screw comes loose during alot of shooting, but the threads were prepped with some locktite blue type material. And one can always add more. The two mags seem solidly locked together. So the design seems well done in taking advantage of the MPX mag profile to help accomplish a good locking together.
