It may fit in an Altoids Tin, but what purpose would it serve? For personal protection, well, after you take the requisite 5 minutes to extract and deploy it, the threat will already be gone (or you dead). Most likely you'd end up shooting yourself with it though, due to it's awkwardness and quite unsafe-looking profile. For sustenance hunting, you'd probably do better with a slingshot. That toy is not going to be accurate at all. One: because of it's overall design, Two: because it doesn't even have any sights! You would be lucky to hit a dinner plate with it from two feet out.