By request, a collaboration with m1xstr, this is a pair of boxes for storage of CZ457, and similar, magazines.  Holding either six or twelve magazines, these boxes will accommodate both 5 and 10 round magazines as well as those with extended baseplates or extra two round modifications. There are two lid files.  One is a complete lid.  The other is a 20mm test slice so you can see how snug the lid fits, allowing you to scale it for a tighter, or looser fit.

Printables Tags: cz; magazine; ammobox; 22lr; cz457; 22lrmagazine