# BrassGrid

> BrassGrid makes custom 3D-printed storage cases for ammunition, magazines, pistols and range gear. Customers add what they carry in an online case builder; it packs everything into the smallest case that fits one print plate, shows the layout, the lid and a 3D view, and prices it instantly. Every case is printed to order in the USA and ships empty.

## What we make
- Custom ammo cases: every round stands in its own pocket sized from the caliber's rim diameter (rim + 0.6 mm clearance, 1.6 mm walls). Calibers mix in one case; shorter rounds sit on raised floors.
- Magazine cases: AR-15, AK, Glock and single-stack magazines stored on edge in fitted slots.
- Pistol and range cases: a bay sized for the frame plus magazines, ammo and gear (optics, ear protection, mag loaders, cleaning kits, or any custom size).
- Two case types: hinged lid with a printed-in hinge and snap latch, or slide-off lid that slides out on rails along the long sides.
- Lid marking: the caliber and round count (or the customer's own text) printed into the top of the lid in a second color.
- Colors: Black, Cyber Green, RGB Metallic, Galaxy Blue, Galaxy Purple.

## Key pages
- [Build your case](https://brassgrid.com/pages/build-your-case): the case builder (pick calibers, magazines, pistols, gear; see size and price).
- [FAQ](https://brassgrid.com/pages/faq): sizing, shipping, returns.
- [About](https://brassgrid.com/pages/about)
- [Contact](https://brassgrid.com/pages/contact)
- [Guides](https://brassgrid.com/blogs/news): ammo and magazine storage guides with real case sizes.

## Guides
- [Shotgun Shell Storage: 12 and 20 Gauge Case Sizes](https://brassgrid.com/blogs/news/12-gauge-shotgun-shell-storage-case-sizes): How to store 12 and 20 gauge shells, plus real case sizes for 25 and 50 shells, 2-3/4 and 3 inch, with hinged or slide-off lids.
- [How to Store Ammunition Safely at Home](https://brassgrid.com/blogs/news/how-to-store-ammunition-safely-at-home): Safe ammo storage at home: locked and out of reach of children, cool and dry, away from heat and solvents, organized and labelled. Check local laws.
- [Range Bag Checklist: What to Pack and How to Organize It](https://brassgrid.com/blogs/news/range-bag-checklist-what-to-pack): A practical range bag checklist - eye and ear protection, ammo, magazines, first aid, tools - and how to organize it so nothing rattles.
- [How to Label Ammo Boxes by Caliber (and Why It Matters)](https://brassgrid.com/blogs/news/how-to-label-ammo-by-caliber): Mixing calibers can be dangerous - .300 Blackout in a 5.56 rifle is the classic case. Labeling methods compared, from markers to printed lids.
- [Are 3D-Printed Ammo Cases Any Good? PLA vs PETG vs Molded Plastic](https://brassgrid.com/blogs/news/are-3d-printed-ammo-cases-good-pla-vs-petg): What 3D-printed ammo cases do well, where they fall short, and how PLA, PETG and molded polypropylene compare on heat, strength and moisture.
- [Hinged vs Slide-Off Lid Ammo Boxes: Which Should You Choose?](https://brassgrid.com/blogs/news/hinged-vs-slide-off-lid-ammo-box): Hinged lids stay attached and latch shut; slide-off lids are flatter with no moving parts. A side-by-side comparison with real sizes.
- [How to Store AR-15 Magazines: Loaded or Empty, and in What](https://brassgrid.com/blogs/news/how-to-store-ar-15-magazines): Can you store AR-15 magazines loaded? Why springs wear from cycling, how to protect feed lips, and real magazine case sizes.
- [9mm Ammo Case Size Guide: 50, 100 and 200 Rounds](https://brassgrid.com/blogs/news/9mm-ammo-case-size-guide): Real 9mm ammo case sizes for 50, 100 and 200 rounds with hinged or slide-off lids, plus 9mm and magazine combo cases.
- [How Many Rounds Fit in an Ammo Case? Pocket Sizes by Caliber](https://brassgrid.com/blogs/news/how-many-rounds-fit-in-an-ammo-case-by-caliber): Rounds per row and per 100 mm square for 17 calibers, from 9mm to 12 gauge, plus real case sizes for common loadouts.
- [How to Store Ammo Long-Term: Temperature, Humidity and Containers](https://brassgrid.com/blogs/news/how-to-store-ammo-long-term): Store ammo cool, dry and steady: under ~80°F and ~50% humidity, sealed, away from heat and solvents. What damages ammo and how to organize it.

## Notes
- Cases are storage only and ship empty. Pocket sizes come from published cartridge and magazine dimensions plus clearance.
- Prices are shown live in the builder; a case is made to order after purchase.