Accu-Tac's WB-4 Bipod was built from the ground up as the ultimate long range, target, and competition shooting bipod. Designed and manufactured in the U. S.A., the WB-4 features a wide, lowered center. This allows the rifle to sit between the legs to enhance accuracy and reduce movement from recoil. Made from 100% 6061 T6 Aircraft Grade Aluminum, the WB-4 features 5 notch height positions and as well as 4 leg positions that can be deployed in 90° or 45° angles. The WB-4 attaches to the host weapon via picatinny rail quick-detach interface. Features: Wide, lowered center - enhances accuracy and reduce movement from recoil100% 6061 T6 Aircraft Grade Aluminum5 notch height positions4 leg positions that can be deployed in 90° or 45° anglesQuick detach picatinny rail interface Accu-Tac WB-4 Bipod WBB-0400