know this isn't the best looking rig but it works and I'm sure many of you can find something that works better but it's an idea to run with for now and see who can make it better.This us a thin piece of metal bent and then tapped to the shell. It lays flat when the magazine is latched but when you pull back the mag release it springs up the empty mag so you don't have to hold the mag release back and lift at the same time.