9x19 mm cartridge case

A 9×19 mm cartridge case drawer for storing 50 rounds of 9 mm Parabellum ammunition in a compact stackable form. The drawer holds ammunition head-down in a grid of pockets (adjustable rows × columns), and slides into a separate sleeve case with push-lock tabs on the drawer's sides that snap into windows in the case walls to keep it closed. The pocket diameter, depth, grid layout, wall thicknesses, running clearance, and lock-tab geometry are all adjustable for different ammunition types and print parameters.