the only place that I know of that might be of some help is the waltherforum.com. they have a subforum for the older model pistols. If you are already a member there, then I'm sure you have already tried and therefore, disregard my post. However a quick google image search has given me some ideas. The figure 8 shape on the back of the slide and frame might be similar to how the Raven MP25 is broken down. link Raven Arms P25 PistolCaliber .