The ARCALOCK Clamp features a proprietary two-stage screw design. Both the Clamp and Knob are machined from 6061-T6 Aluminum with Type III Hardcoat black anodized Clamp and gold anodized Knob. The screw is turned from 303 stainless steel, and can be used on our Atlas V8, PSR, CAL and Super CAL models.
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 our "LW17" style of Atlas Bipods OR the 2-screw mount style of Atlas Bipods.