A standard K&M case will only hold one CR123a lithium. The stopper is set too deep in the case to allow a pair. If Keith does do a longer verison for the REI matches then it may work....however I too would caution the use as a conductor. Adding some insulating bits on the stopper base and case bottom would probably work, but I carry a SureFire case for my spares or use a plastic tube with press fit plugs.

Thanks for the orders folks.

Keith has advised me that all or most of his red cases are going for a large order and by my count there is only one yellow case left. He is doing a recount, but for now I would probably advise that the standard brass, black aluminum and special order clear aluminum would be the choices.