There are 81 combinations that you can choose from, however, there are 324 possible permutations when you account for the lid pressure safety and thumblock.

The StopBox Pro is constructed of impact-resistant glass-reinforced polycarbonate-ABS and steel reinforced. It is extremely durable, but also lightweight to be portable. It's important to understand the intended use of the StopBox. It's for use when your gun is not in the holster or in the safe and you want quick, reliable access to it. It's designed to conceal and prevent unintended access. We wanted a lightweight, portable box that is impact, heat, scratch, dent and pry resistant, among other features. We’ve chosen this material intentionally also due to its tensile strength, and dimensional stability.

The StopBox is a TSA compliant locked container. We have never had issues traveling with our firearm stored in a StopBox through checked baggage airline travel. Just make sure to follow TSA guidelines for packing your firearm and ammunition! Check out our TSA video.

Learn more from the TSA website.

If you're opening your StopBox for the first time and it's awkward, this is normal and the StopBox is working as designed. It's designed to slow others down, but not someone who's practiced with it. Here is a video on how to open a StopBox.