Tactical Lockable 9mm Ammo Box — 50 Rounds

If you’re already scrolling to see if this is worth downloading…
Yeah. Same.

There was no Gen 1–3. This is just where I landed. Designed to hold 50 rounds of 9mm and survive being thrown into a range bag, dropped, or forgotten at the bottom of your kit. Nobody asked for this to be this complicated, but here we are. A 9mm ammo box designed around rigidity, retention, and not feeling like a disposable plastic afterthought. Designed for repeated use, rough handling, and zero patience for flimsy prints. Thick walls where it matters, clean tolerances where it counts. Did I mention it was lockable? Unlike a clasp or friction bump, it won't wear out, it'll just wear in.

Yeah, I will be making other ammo sizes very soon. If you have one you really, really want, comment it below and I know what to prioritise. I will be prioritising ammo sizes that fit in this box before making any different sized boxes though. My plan is to simply offer different trays for different rounds.

NOTES:

This box needs supports.
That’s not a mistake. That’s the design. I may release an entirely flat lid that requires zero supports if you can live without the Gucci.

Supports are set to hybrid for necessary reasons.

Don't change the slider orientation.
It stays at 45°. Rotate it a single degree and it will break when you use it. Ask me how I know. (but actually don’t.)

Print it slow.
Slower than you think.
While not a requirement, I suggest outer walls at 120 mm/s MAX if you want it to come out clean. On all your prints that matter, actually.

Use a filament we all trust.
Solid materials. Proven settings.
If your experimental, high-drama filament didn’t work… that’s not the box. Try not to use anything other than PLA Basic, PLA Matte and PLA+. If your $10 or less filament came out bad, then buy a mirror and take a long, hard look at yourself.

If you want to try something like ABS or ASA, feel free — I expect the contraction to be an issue but I plan on getting some ASA soon and I'll do a test print in PETG too and try to make alternative profiles if possible.

Lifting off the build plate?
That's a you problem buddy. If you're unsure, just ask but enabling brim ears is perhaps the smartest thing you can do.

Read the notes.

Print it properly. Load it. Throw it in a bag. Move on.

If you're unsure of anything or new to 3D printing, just ask. No question is stupid unless it's a stupid question in which case I will pretend it's not.