Just Google the design you need and go from there. Person It could be nice to at the least be able to have a 15 rounder or so. In terms of other suitable models, I'd use Mec-Gar also. Need to be no dilemma finding them. I am hunting a Ruger https://ruger-shotguns80000.rimmablog.com/31479116/top-guidelines-of-ruger-p89-for-sale