Quote Originally Posted by tammons View Post
Is any of this stuff on their website anywhere ??

What does the firing pin adapter do ??
Just call them and order a fully loaded .223 bolt with the hole drilled out for the bigger firing pin and the firing pin adapter for a long action.

Hard to explain what it exactly does.

Since you have the older flatback model, you have the bigger firing pin. The new bolt head will need to be drilled out to accomodate that firing pin.