TipTop EZ Pivot Rifle Bipod 6" - 9": Sling Stud Mount, Extendable, Folding, with Sling-attached Hole PN# S5-54663 Heavy Duty, Stable, Quick Setup, Light Weight, Sling-attached design Easiest and fastest stud mount design (Newly Patented) Easy Level (Pivot) adjustment for uneven terrain. Rotate along the axial of rifle barrel up to 27 degrees. Durable design to manage recoil of the rifle All-weather no-rust black anodized finish