This is the UTG PRO TBNR Bipod. 3 Position Folding with Steel-on-steel Lockup. Low Profile M-LOK Mount Features Tension-adjustable 360 degree Panning & 19 degree Forward, Rearward, Left, and Right Tilt. 8.5"-11" Center Height Adjustable. Automatic Leg Retraction. Patented Height Adjustable Spiral Guided Leg Extensions with Steel Ball Bearing Detent Ring Locks Manages Height Adjustment and Retention. Interchangeable Foot Pads Compatible with Most Aftermarket Pads with QD Locking Detent. Type III Class 2 Matte Black Hard Coat Anodized 6061-T6 and 7075-T6 Aluminum Construction with Reinforced Steel ComponentsFeatures :"8.5"-11" Center Height Adjustable,Low Profile M-LOK MountType III Class 2 Matte Black Hard Coat Anodized 6061-T6 and 7075-T6 Aluminum Construction with Reinforced Steel Components