If a maker lists it on their site, there is probably no way of knowing if it is the old one or the new one. You could try holster makers that were around before the new R51 was introduced since they may have a mold for the original, such as Mitch Rosen, Milt Sparks, Kramer Leather, Ted Blocker, El Paso Saddlery are some options. You'd need to call.