Tactical Quick-Release Waterproof Storage Canister

This tactical storage canister is designed for easy 3D printing—minimal supports are needed, and they’re simple to remove. It works with a waterproof O-ring (21mm outer diameter, 1.5mm thickness) that you can either print in TPU or buy off-the-shelf. The design tolerates slight variations in O-ring sizes, so no need to worry about perfect matches.

The quick-release lid opens smoothly, and the canister attaches effortlessly to MOLLE systems, hiking backpacks, or straps using built-in clips. Inside, it has a 20mm-wide, 104mm-long cylindrical space—perfect for storing 2 AA batteries, matches, or other small essentials. While it’s fully rainproof, I don’t recommend submerging it underwater for long periods.

Built with a rugged, tactical look, it snaps together securely without tools—just a 12mm filament piece locks it in place. The handle’s two-part design uses strong snap-fit joints , but if you want extra peace of mind, a drop of superglue will make it indestructible. No complicated steps: print, snap, and go.

Even without an O-ring, the tight-sealing lid keeps rain out thanks to its snug friction fit . we’ve included a printable TPU O-ring file in the STL pack—use it if you want.

My other models compatible with molle system

The strength of 3D-printed knives cannot be guaranteed and they are suitable only for light-duty tasks, such as cutting paper or opening Amazon packages. Unless otherwise specified, all of my knife designs are intended for light-duty use only.

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