Blackcat Airsoft 5-H Heavy Duty Bipod 
Metal Construction
Quick Detach Design
Fit to Mount on 20mm Picatinny Rail System
This larger bi-pod is convenient for a more grounded shot
Its wide stance and ratcheted leg extension gives you the adjustability needed for precision aim and repeatability
To engage or adjust leg position, simply press the silver button above the leg and then swivel it to 5 different positions