At least purchase Iver Johnson internals for the bolt, including the springs that go in the bolt. Then when you heat the bolt up firing a few rounds in rapid succession and the bolt parts fly off, you can pull the bolt and send it with the parts and I can put it together for you using my specially designed tool for the job ... or just let me know you want to try it yourself and I’ll send you the tool and you can return it when you’re finished. I don’t offer free work to too many folks, Matt. If you fire two or three mags in quick succession, you will have parts failure with ‘after GI parts’ manufactured rifles.
Sounds like good advice. I will remember to get more info on the carbine, the work might have already been done. The seller is in LE.