Frye, on an M1 Carbine, Numrich arms can supply you with any parts you may need for very reasonable prices. I have kept all my US military firearms original, but have gone to Numrich for correct butt plates, sling swivels, handguards, mags, stuff.
http://www.gunpartscorp.com/catalog/Search.aspx?filter=US%20military%20rifles&catid=11882Good schematic: (print or save)
http://www.chestnutridge.com/cpic.aspWhen you say a broken bolt handle, I think you need a new slide (Part 37).
Note 'Universal' carbines should take USG parts, but not guaranteed.
http://www.maxicon.com/guns/universal_m1/universal_m1_carbine_production.htmEdit:
Forget the above for your broken slide. NOT parts interchangable.
Broken Slide on the Universal
While cleaning my Universal, I found the slide had cracked back by the charging handle. This is one of the more common failures on Universals, and parts are difficult-to-impossible to find. Unfortunately, this is one of the non-GI parts, and aren't available anywhere I know of. It may be weldable
Thank you much for looking, I was on their site twice looking and came up with the same thing. Looks like it is weldable. It appears to have been repaired once in the about same place as the crack in the pic. But, it's been broken again and the entire handle section just to the right of the repair is missing and will have to be fabricated, then welded on. He had been using it for years by hooking his finger in it to load and unload the chamber. ??? Couldn't have been easy, I'll bet it was staying loaded most of the time. Looks like if it was a generation 1 instead of generation 3 the GI slide would have worked.
I just bought a fairly large industrial lathe, a 1963 Cincinnati hydroshift. 20/20 hindsight says I should have bought a mill too but I don't have room in my present mini shop for both.
