Check the listing for details. Ravin Crossbows Tacheads Bi-Pod. Condition: New. Listed at 41.99 USD. Use your crossbow in conjunction with theRavin TacHeads Bi-Pod to get a sturdy and stable hold on your weapon so that you can take the most accurate shots possible. These Bipods crafted by Ravin arespring-loaded with quick detach capabilities so that you can easily set up or take down your crossbow from the platform.