Accu-Tac's FD-4 Bipod was built from the ground up to fast paced shooting environments such as PRS and NRL competitions. Designed and manufactured in the U. S.A., the FD-4 is 100% billet-made from high strength aircraft grade aluminum and offers versatile performance for bolt-actions, precision, competition, air guns, and the majority of other platform. The FD-4 can quickly deploy from the folded to the 90° position, and features 3 individual leg positions and 5 notch height options. To engage or adjust leg positions, pull the spring loaded legs downward, each leg can them be adjusted independently. Leg position can be deployed to 90° or 45° backwards, locking securely into 3 positions. The FD-4 also has the ability to cant, which can each be locked and secured with the quick detach lever. Features of the Accu-Tac FD-4 Bipod:100% billet-made from high strength aircraft grade aluminumCan quickly deploy from the folded to the 90° position3 individual leg positionsAttaches via Arca rail Accu-Tac FD-4 Arca Spec QD Bipod FDQDB-004