The Multi Tool Pro by Doughtinator on Etsy uses a printed spring on the mag release to put pressure on the lip that holds your Talon mag. When i was building mine my filament (Bambu PLA Basic) wasnt strong enough to hold the magazine. So i removed the printed spring part of the mag release piece and added a tiny hole for a small spring to go into. also make sure to glue it in as its not deep enough to stay on its own!
Hardware needed:
1x small coil spring (from a pen or something) Diameter: max 5mm. length: 15mm-25mm.
The author remixed this model.
The original STL uses a printed spring as part of the mag release piece, i removed that and cut a hole to make room for a small spring from like a pen to fit in there instead, as that is stronger and more reliable