Works fine, but no instructions - Ed Brown Products Extended Mag Base Plate for M&P

These appear to work as designed, but the lack of instructions is a pain. Not even Ed browns website had instructions for these. Seems like it would be super simple, but it is something I had never seen before. You will have to remove the baseplate from your existing mag, then you take the little Allen wrench that came with the new base plate, and back out two hidden Allen screws on the corners of the new baseplate. Once you have done that, you can slide the new base plate on. Once the new base plate is on, you need to screw the screws back down to lock the base plate in place. As for the plastic spring base plate, I left mine on the spring, but I honestly have no idea if you are supposed to or not. My mags do seem to feed fine though.