Green Blob Outdoors CNC QD Tactical Bipod Flat with Adjustable legs (Black, 6.5 - 9 inch) Weight: 360g; Gross Weight: 420g; Material: Aluminum Fits 20mm Rail QD Mount Adjustable Leg Lengths: 6.5-9 inch Color: Black Material: T-6 Aircraft Grade Aluminum Fits 20mm / Picatinny Rails Quick Detachable and Easily Adjustable Pivoting Mount