Ultra-light Harris Bipods are lightning quick and quality manufactured with heat treated steel and hard alloys. The bipods are quick-detachable and clamp to the stud of bolt action rifles with conventional stock design. Carrying your rifle with a sling or shooting off-hand is not impeded by the use of a Harris Bipod. Hinged bases have tension adjustment to eliminate tremor or looseness in the crotch area of the bipod. Bipods have an all-weather black anodized finish. Features: Friction Lock Models: These are all models except those with an M in the model designation Feature a friction lock or set screw to adjust height Set screw has a large knurled knob for easy operation Simply loosen the friction lock to extend leg and tighten to lock in place Technical Information: Harris S-25C Bipod Sling Swivel Stud Mount 13-1/2" to 27" Material: Aluminum Alloy and steel Hard Rubber Leg Caps 3 Piece legs Finish: Anodized Black Weight: 19 ounces Method of Attachment: Attaches to sling swivel stud. A sling swivel can be mounted to the bipod's swivel stud clamp. Notes: Rotates to either side for leveling on uneven ground Most suitable for shooting from the sitting position or kneeling (at full extension) May not fit all guns; adapters available separately Swivel Models These are the models with S in the designation Hinged base has tension adjustment and buffer springs to eliminate tremor or looseness Available for all models except H models