Gas piston nut

I need a new or decent used gas piston nut for my M1 Carbine. I am replacing a restricted length barre with a replacement non restricted length barrel.
When I took the piston and nut out of the original barrel, I noticed the nut was cracked. I certainly don't want to reuse it.
I am in Canada by the way so there is no way it can be shipped up here from the US. The M1 Carbine is non the restricted list with the BATF. :mad:

If anyone on this board is from Canada and wants to sell or trade for a piston nut please contact me.

If I absolutely have to, I will make one, but that is a last resort only