OTW Rifle Bipod Tactical Bipod Universal Adjustable Height Picatinny Rail/swivel Mount Bipod with Rifle Barrel Clamp Accessory Weaver Mount Rail Low-Profile Foldable Tactical Rifle Bipod with adjustable height from 6 to 9 inches Unique posi-lock feature to prevent tipping User-friendly spring operated, double-lock clamp Extendable Spring Powered Legs with Stable Rubber Feet Stands High tech durable Aluminum Alloy construction with 21.7mm Standard Picatinny Weaver Rail Mount