Harris swivel bipod

6-9 inch Tactical Hunting Rifle Picatinny Swivel Stud Mount Harris Bipod

9-13 inch Harris Style Swivel Bipod Tactical Adjustable Pivot Spring Hunting bipods

13-23 inch Tactical Pivot Notch Leg Swivel Stud rifle Mount Harris style bipods

13-27 inch Harris Style Pivot Model Bipod with notches and swivel