Thingiverse
AK extended Mag Catch - Airsoft AEG by snoopukairsoft
by Thingiverse
Last crawled date: 4 years, 6 months ago
Basically this allows you to press the Mag release with your right hand, whilst placing in another mag with the other(Or left hand, it's ambidextrous.) Requires 2 small screws(PC case screws)