SME's Shooting Bi-Pod with Spring features a clamp mount for easy attachment to firearms with picatinny/weaver style rail. It is supplied with butt stud adapter to attach to firearms with a standard butt stud and an additional butt stud on adapter for swivel attachment. The adjustable spring-loaded legs are constructed of anodized 6061-T6 aluminum with a spring locking knob and soft rubber feet for stability. This model has a black finish and is 6-9" long.