Help with Broken Bolt Damaged Receiver M1 Carbine

[painter777]

After looking at the bottom left guide way that the bolt's left lug rides on top of .... I seen the shape of it and thought it was messed up, with metal missing.

Mine has some wavy cut outs and I don't know if that's machining or not.

You're seeing what I tried to describe in my Quote above from post #9 on page 1. Not knowing any better at that time, I thought that carbine was ruined.

Those wavy cuts allow for the needed left bolt lugs movement, while the bolts right lug is being rotated while attached to the Op slide. One notch on that left rail IIRC allows clearance for the rim of the next casing as it feeds up.

I'll try to put the pictures you requested up Saturday for your comparison.

Charlie-Painter777