What would it mean if my stock didn't have arsenal rebuild stamps on it?

[mjanway]

Like the man inferred earlier, you NEED to buy 'U.S M1 Carbines, Wartime Production', 7th Edition, by Craig Riesch. You can get it on Amazon for about $20 delivered (recently, I think) and it will be the best $20 you will ever spend on this affliction.

I didn't realize the 7th Edition was out, Thanks. Just ordered it.