The last update I heard was from someone that was in contact with the owner of DRM. They were producing a bunch of stuff for a random 6mm game that kind of vanished from being advertised on the 6mm groups- it was called polyverse or something.
DRM were then meant to be setting up a new webstore, though this info is from a few years ago now. But it does look like they never did return and the range has died off. Maybe someone like vanguard can pick up the range, as there was some really nice lines there!