This is a drop-in storage mount for 10 PMAGs to fit in the door of an AMSEC safe. The STL files can be modified for other dimensions or geometries. I printed these in PLA (with PLA support material at the interface for clean lines on the parts and with 4 walls and 50% Gyroid infill for strength) and used a double row of dovetail joints to join the parts. A line of E6000 glue and 24 hours to cure and you are good to go. I added a hole in the bottom for a #6 sheet metal screw for added support if you place fully-loaded PMAGs in it, although empties wouldn't need it.
I will potentially print this in a stronger filament if the PLA doesn't hold up over time, but so far, it works great.
The author marked this model as their own original creation.