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.Description: BipodType Of Bag: N/APrefilled-empty: N/AType Of Feet: RubberMaterial: AluminumVertical Adjustment: 6-9"Attachment Type: Swivel StudNo. Of Legs: 2