Hi Gerald,
Yes, the Crosman tank is regulated to 2000 psi because it was originally designed for the Disco which has a max of 2000 psi. However, you would of thought that with the Mrod they would of introduced a newer version with an upgraded valve assembly (or higher regulated one). It's funny you should ask this because at this very moment myself and another forum member (whose name I'll leave anonymous for the time being) are working on (actually my friend is doing most of the work, ie. machining, I'm providing technical support on the SCBA 4.5 valve) retrofitting a 68 ci paintball tank with a SCOTT SCBA 4.5 valve assembly. Like yourself, many of us would like to have a small portable bottle for field use. At the moment I'm unsure if my friend here will want to market this item due to liability concerns but I'll find out. Thanks. Steve
ps. There are some mini 4.5 tanks available, ie.
www.Airhog.com. we were hoping to put something together for less than the $275 asking price.