Accu-Shot AI Monopod Bracket AIMB Black. Modification to the Buttstock Stocksides (skins) is required to accept the AIMB. The AIMB is mounted to the AI frame using your existing BT08 Stock Collar Fastener (this fastener is not included in the it is included with the BT08) being threaded to the lower AI butt pad bolt. The BT08 is then attached to the AIMB by means of the supplied 5/16-24 socket head cap screw. Package Contents: Accu-Shot AI Monopod Bracket AIMB Accu-Shot BT39 AI Monopod Bracket AIMB Black