The UTG Tactical Op Bipod is an amazingly innovative and well constructed bipod. The legs are spring loaded so they can be retracted quickly if the shooter needs to move quickly. Included with this bipod is a swivel stud and picatinny mount so the bipod can be used on guns that aren't equipped with a rail interface system. The bipod legs are adjustable for length and they feature a posi-lock wheel and quick retract button. This is a great design for a quick deploying bipod, and it's made from high quality steel and aluminum.