If you have a heritage rough rider 22 revolver. It's only $300 including the stamp to make it into a carbine. Heritage makes the parts.
You could absolutely do this with the new 2 inch barrel version.
https://www.shopheritagemfg.com/stocks
CleverLibre Social is an inclusive social instance for open discussion, learning, and community. All cultures welcome. Hate speech and harassment strictly forbidden.
https://www.shopheritagemfg.com/stocks