5 Levels 6-9" Swivel Rotate Tactical Pivot Rifle Bipod + Rail Adapter This bipod has pivot top and allows the gun to tilt from side to side, many others don't. This swivel model allows shooter to compensate for ground. The swivel level is up to 20 degrees. Includes a rail bipod adapter to mount onto Picatinny or weaver rail. A 10 value Notched leg has for rapid height set up Fold Parallel to the barrel when not in use.