You might give Jack First a call,maybe they have some.
Wanted to follow up on this reply. They did indeed have the part in stock - newly manufactured. It wasn't the cheapest solution, but it was in a reasonable range considering that it returned a very nice firearm to working order.
For anyone that is interested in the site info
http://www.jackfirstgun.comThe lady that took my call was polite, courteous and very helpful. One of the best transactions that I have had with a business in some time.