Wide Mouth Mason Jar Mousetrap

About This Model

This wide mouth mason jar mousetrap file is a pre-sliced, ready-to-print design that turns a jar you've already got into a self-closing trap door trap. A mouse steps onto the trigger plate inside, its own weight tips the platform, and the door swings shut behind it — no springs, no bait wasted, no half-set trap you have to check twice. It's compact 3D printed gear that threads right onto standard wide mouth mason jars, so it fits in a pack, a truck console, a pantry shelf, or a homesteading setup without taking up real space. Built for field use and everyday pest control, it holds up to repeated resets and travels well, whether you're stashing traps around a cabin, a barn, or a bug-out cache. Because the file is pre-sliced, there's no tuning, no support cleanup, no guesswork — load your slicer's defaults and print a working trap the first try. It's the kind of survival gear that earns its keep: cheap to print, easy to replace, and effective every time a mouse gets curious. Outpost 3D designed this outdoor tool for people who want pest control that works without relying on hardware store trips or store-bought traps.