ARCALOCK Clamp by Area 419

The ARCALOCK Clamp will bolt directly to any "NC" (No Clamp) style of Atlas Bipods (except the 5-H) using provided hardware. It will also bolt directly to the BT20-B Bottom Picatinny Rail to utilize the quick detach lever on the "LW17" style of Atlas Bipod OR the 2-screw mount style of Atlas Bipods.

Features: 

• Proprietary two-stage screw design.
• Clamping screw features two different thread pitches. The coarse 16tpi is used when no tension is on clamp, allowing rapid movement of the clamp vs others on the market. With high speed comes low torque though, so to counteract this, as soon as the clamp sees tension it will switch to the 32tpi threads in the knob to give you extra torque when not using on the Area 419 ARCALOCK rail.
• 1/4 turn releases the clamp from the detents on the ARCALOCK rail for movement.
• One Turn releases clamp to be removed from rail.
• Clamp directly bolts to the Atlas Bipods using their factory hardware (excluding the 2-screw bipods. NC and QD only).
• Clamp is backward compatible with standard ARCA rails by removing the two pins, and will still work this way to give you infinite sliding adjustment on the ARCALOCK rail 
• Moving side of clamp is dovetailed on both sides to prevent tilt.
• Knob/Screw design prevents the clamp from being able to fall apart if you loosen it too far.
• Clamp and Knob machined from 6061-T6.
• Screw is turned from 303 Stainless Steel.
• Type III Hardcoat Black anodized clamp and Gold anodized knob
• Weight: 2.5 ounces

Can be used on the Atlas V8, PSR, CAL, and Super CAL models. NO HARDWARE INCLUDED.