Due to the mechanics needed to assemble the Yoke to the Draw Bolt, any parts for the lower part on the Ram, minus the Ram itself, must be purchased as an assembled item and shipped together. You would need the following parts to make up the assembly:
Qty 1 Draw Bolt
Qty 1 Primer Spring
Qty 1 Spent Primer Cover
Qty 1 Spent Primer Retainer
Qty 1 Yoke
Qty 2 Yoke Pin Clamp