A.P.S. Spring Eject Tactical Bipod (6-9 inches)Foldable & Adjustable Spring-Eject LegsThis foldable bipod can be mounted on APS APM40/M50 Sniper RifleLeg extended by pulling the leg from 165mm to 230mmLeg extend by releasing lock on legThe stand of the Bipod is extendableThis bipod also fully compatible with aftermarket Airsoft Guns using the same mounting system5 position setting with 15mm incrementSwing-able design for leveling on uneven groundDirect attach to standard Rifle Q.D. StudItem Specification:Item Weight (gram): 437Major Color: BlackBuilt Material: Metal