Air Rifle Slug Tray / Box

UPDATE 2020-11-25: Added a stackable version (suffix _stackable). With this version, each tray bottom will snap into a lid top, making it possible to connect multiple boxes in a tower. The tolerances are very tight on purpose, so the boxes snap with a click and do not come loose when you pick the top box up. It seems to work perfectly on my printer, but if yours don't fit, play around with a scalpel or sandpaper until they snap in.

https://www.youtube.com/watch?v=bMzlA1HPx7Q

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Nielsen air rifle slugs come in a ziplock baggy in a cardboard box, which doesn’t fit my rifle case, and is too bulky to pocket. So i FTIJP’d a nice little 100-slug case with a satisfying click.

The label is printed in black PETG, the case is orange PETG. There’s a little “rail” across the middle of the lid to stop it from bending inward and coming loose. The bottom has little holes you can use to stick a paperclip in and force a slug out if one gets badly stuck (they don’t in the current revision of the case, but better safe than sorry). Slug holes are partially conical to make the slugs drop in smoothly.

Available in .22 and .25 caliber, designed for NSA (Nielsen Specialty Ammo) slugs, but should work fine for e.g. FX Hybrids and JSB Knockouts too, as long as they're not too long. Lid is designed to accommodate 27 grain slugs in .25 calibre, but has some extra space for slugs up to 43.5 grain or thereabouts. 55.5 grain won't fit.

NOTE: .22 is untested so you're on your own with that. .25 is confirmed to fit nicely, does not get stuck, and can be tipped out of the tray easily. The lid label in the photos is NOT included in the STL.