This profile has two models included:

1: 50 round 9mm ammo box, fully 3d printed and snap fit. The box uses nubs to keep closed. 

2: Speedloader for AR Endomags

The case is designed so that the speedloader can easily slide in, to load in rounds 10 at a time.

The speedloader is designed to print with just a brim, and no supports, hence the kind of weird geometry.