Just the bolt. No need for carrier or firing pin.Thank you for the information.
Looks like I have to buy the complete carrier and bolt assembly. The good news. it's a straight drop in replacement. Bad, more than I wanted to spend. If I don't buy the Steyr parts, I end up with a bunch of useless (to me) parts. Guess I can put the old or unused parts up on EBay or Gun Broker.