This is the first time I have ever heard of such a thing here. Remington bought us in January of 2014. You mention that you had an issue with your R9 in 2015 and Remington replaced it with a new R9 at that time. I guess they assembled one out of the parts they got from us at that time. Interesting. That would certainly be on the collectible side due to such a thing. . . . . a Remington assembled Rohrbaugh R9 pistol! Cool.
If you could post a few photographs of the gun here so we can have a look at it, I may be able to add to the description should the parts look familiar to me. Pricing, or a suggestion on marketing it, would follow of course.
ECR