Harris Bipods S-Br2P Sb R2P Self Leveling Legs, Made Of Steel/Aluminum With Black Anodized Finish, 6-9" Vertical Adjustment, Rubber Feet, Picatinny Rail Attachment Harris bipods Clamp To Picatinny Rail Rifles, And Have a Sling Attachment Provision. Spring Loaded Self-Leveling Folding legs Are quickly Adjustable For Height. Manufactured With Heat Treated Steel And Hard alloys, bipods Have a Black anodized Finish. Type Of Feet: Rubber Material: Steel/Aluminum Vertical Adjustment: 6-9" Weight: 12.50 Oz Attachment Type: Picatinny No. Of Legs: 2