S-Lever Tensioner for S-Type Harris and Caldwell XLA Bipods The Harris and Caldwell XLA "S" type bipods allow you to tilt or cant your rifle side to side to level your crosshairs. It's a great system. However, the friction tensioning knob is hard to adjust with your fingers. Our new S-Lever Tension Lever is an economical replacement for the friction tensioning knob to give you much better control and leverage. Pictured top left is the standard S-type bipod. Top right is the same type of bipod with an S-Lever installed. The S-Lever ratchets to be released and re-positioned after you've adjusted it. Made of fiber reinforced nylon, the S-Lever is designed to flex or break off if it gets over-tightened or hung up on something in the field. Installs easily... Just unscrew the friction nut and replace with an S-Lever. The Harris S-Lever installs easily on all "S" type Harris Bipods. Also Available for Caldwell XLA S-Type Bipods.