well after everyone online wanting to kill you with shipping charges I went to rural king and checked out their 50cal can and for the modest price of $10 I figured I would try one and it seems to lock up and seal quite well for what it is. We don't have any army navy stores around anymore and gun shows around here seem to be the tacticool crowd with less mil surp guys and if they do have a GI can its over $15. I figured these RK cans will suit my wallet as well as storage.