Good luck on the stock ruger 10/22 reciever but google 10/22 recievers and several will come up probable starting with no-dak, razor, TS and on and on. Try at rimfirecentral . There are a bunch of barrels threaded barrels too and the problem is finding the barrel in your price range.. Most ever one that makes a 10/22 barrel also offers threaded options. Google first and see what you find.