Accu-Tac's PC-4 ARCA Spec is a heavy-duty, versatile bipod ideal for target, tactical, hunting, and any other shooting application. Made from 100% 6061 T6 Aircraft Grade Aluminum, the PC-4 features 5 notch height positions and as well as 4 leg positions that can be deployed in 90° or 45° angles. The PC-4 attaches to the host weapon via ARCA Rail quick-detach interface. Features: 100% 6061 T6 Aircraft Grade Aluminum 5 notch height positions 4 leg positions that can be deployed in 90° or 45° angles Quick detach ARCA Rail interface Accu-Tac PC-4 Arca Spec QD Bipod PCASQD-0400