Set of briley sidekicks 20 to 410 complete with roll, knockout rod assembly and hammer. Bought off this forum used for two rounds skeet. Bought a 410 gun, so these are going down the road. I don’t know what guns they fit you will have to research it. I had them in a Winchester 23 double. PayPal or money order ok. Please email me at c6left@gmail.com almost forgot 250.00 shipped Thanks
Guessing they fit most side by sides and over unders. I used them in a Winchester 23 side by side and an skb 100. Your trigger should reset mechanically as 410 recoil may not cock second barrel. I don’t think they will work in blauser guns. I would advise you to check the briley website for more and better information.