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. So far as other appropriate manufacturers, I'd personally use Mec-Gar also. Must be no problem obtaining them. I'm searching a Ruger PC https://ruger-p89-for-sale47912.bloggin-ads.com/55441863/5-simple-techniques-for-ruger-shotguns