AR-10 Help

[Whitey]

So I have a Bushmaster AR-10 and I finally got to take it to the range. After about 50 rounds, it quit extracting the spent shells. After minor disassembly, I discovered that the extractor seems buggered up, almost like it was made out of soft metal. So now I need to replace it, but everywhere I look, only AR-15 parts are plentiful. Is there a good resource for AR-10 parts that I have not found. In all, I am pretty enamored with the gun, but parts don't seem to be plentiful.

 

[Inthegarge]

Midwest Gun works, Brownell and others sell the extractor parts..