That thing is pretty slick looking! Looks like fun
That handgun is an extremely light weight gun. One could shoot subsonic loads and eject manually to avoid the suppressor.
Look up H&R Handi rifle issues. My 30/30 would not eject 50% of the rounds. Not easy roaming the woods with a cleaning rod to knock them out. I took a cleaning pad with valve lapping compound and started polishing the chamber. I also took the ejector spring out and put in a thin washer, increasing the strength a bit. There was one more modification specific to the rifle. It ejects cleanly now. No signs of any case issues. Some times a warn chamber reamer is the cause.I've got a Savage over and under that's a .222 on top and a 20 gauge underneath.
Kind of like that chiappa double badger.
The only problem I'm having now is finding parts for it.
It doesn't want to eject the .222 cartridge once fired. My dad took a look at it but couldn't find the part that he thought was the culprit so for now it's sit's in the safe.
I do think this would be an excellent grouse gun or rabbit gun. The 20 gauge could be used for ptarmigan, grouse, or hare's, and the .222 could be used if you saw a coyote, wolf, or lynx.
I got this gun on a trade from a family friend years ago. Maybe one of these days I'll take it to an actual gunsmith and see if they can't get it functioning properly.