wdmshooter

You did not reply to what size cartridge fits in the barrel. Thanks to Smitty's video the answer is easy. We know the 40 barrel will not fit into the 9mm slide. So what size cartridge fits into your barrel. If the 40 doesn' t fit, then you have the 9mm barrel, but don't know for sure which slide you have. If the 40 cartridge fits, then you know you have a 40 barrel, mis-stamped, and a 40 slide.

Bob