Caldwell Accumax Picatinny Rail Bipod, Carbon Fiber, 6-9, Black 1081952 Achieve maximum accuracy with the Caldwell Accumax Carbon Fiber Bipod. The Accumax Premium Carbon Fiber Bipod attaches for easy and secure lock-up. It features quick-deployment carbon fiber legs with 90 degree forward locking method or backward method with spring-loaded buttons. The Premium Carbon Fiber Bipod also features an omni-directional ball mount for 360 degree panning" a lever lock handle for fast adjustments" and of course" twist-lock leg length adjustments.