Area 419 is always looking for ways to improve existing products when we are not developing new technologies. With the rapid growth in popularity of ARCA rails in precision rifle, they saw a need to improve this great dovetail technology to something that could be mechanically locked in place instead of just friction. If you have ever tried using a Barricade stop on an existing ARCA rail, you've probably also seen it slide under much pressure.Pro tip: If you're looking to convert a Picatinny bipod to Arca, such as the Atlas BT-10, you'll also want to add the Area 419 Picatinny Adapter (Part# 758480) to your cart. FeaturesClamping screw features two different thread pitches1/4 Turn releases the clamp from the detents on the ARCALOCK rail for movementOne Turn releases clamp to be removed from railClamp directly bolts to Atlas Bipods using their factory hardwareClamp is backwards compatible with standard ARCA rails by removing the two pinsMoving side of clamp is dovetailed on both side...