Just Google the design you would like and go from there. Man It could be good to at least be able to receive a 15 rounder or so. As far as other appropriate models, I'd personally use Mec-Gar also. Really should be no challenge locating them. I'm looking a Ruger https://rugershotguns89011.blog5star.com/32528414/the-2-minute-rule-for-ruger-p89-for-sale