I have read alot about the type of kits that U/K S/F are using, you are correct about the one avaliable from Penrith Survival, but most of the S/F manufacture there own using the same sort of Components. If they want to use issue one they usually get the MK3 Induvidual Survival kit issued and use it or gut it for there own devices. Hope this info helps. Me my self have been using a modified Bob Cooper kit for quite some time and have had no problems with it, Just modify it for diffrent areas of travel. If anybody needs more info get in touch.