Well, that may be just what I need, I'm not sure. They were the maker of the shotgun, but it's actually branded as a SigArms SA5, and I'm not sure if it is simply one of the Rizinni models with a different name or if it is a different model made for Sig. There's certainly one way to find out, so thanks for the lead. If someone else has an actual SigArms manual and schematic I could copy, please do contact me. Thanks again.