Louisville Slugger MLB Prime Bats. The Best players in the game deserve only the highest grade wood available. That’s why Slugger hand selects only the best quality wood on the market, which we call MLB Prime Veneer. Wood Veneer Ash. Turning Model: C243 Buster Posey. Finish: Natural AFS. Process: Amish. Handle: 1516 inch. Barrel Extra Large. Compressed Yes. Cupped Yes. Knob Date: Yes. Buster Posey Model VAC243.