The Area 419 Arcalock Clamp works on all standard ARCA / 1.5 in. dovetail rails and bolts directly to Atlas bipods using their factory QD or NC hardware (2-screw bipods need a Picatinny/1913 adapter). A proprietary two-stage screw uses a coarse 16tpi thread for rapid movement when untensioned, then switches to fine 32tpi threads for extra torque once tension is applied.

About a 1/4 turn releases the clamp from the rail’s detents for repositioning, and one full turn removes it entirely. Remove the three pins and it becomes backward compatible with standard ARCA rails for infinite sliding adjustment.

Key Specifications

• MPN: 419-ALK-CLAMP
• Manufacturer: Area 419
• Unit Weight: 72.5 grams (about 2.6 oz)
• Compatibility: All standard ARCA / 1.5 in. dovetail rails; bolts directly to Atlas bipods (QD/NC hardware)
• Screw Design: Two-stage 16tpi/32tpi proprietary clamping screw for fast movement plus high torque
• Material/Finish: 6061-T6 aluminum clamp and knob with a 303 stainless steel screw; Type III hardcoat black clamp, gold anodized knob

Frequently Asked Questions

Will this clamp work with my Harris bipod? Not directly for the barricade stop – Area 419 notes the barricade stop doesn’t work directly with Harris bipods, and a separate Barricade Kit is required for that combination.

Can I use this clamp on a standard non-ARCALOCK ARCA rail? Yes – remove the three pins and the clamp becomes backward compatible with standard ARCA rails, giving infinite sliding adjustment without the mechanical lock feature.

Buy the Area 419 Arcalock Clamp – Gold at Schaefer Defense

Get fast, tool-free bipod attachment with the Area 419 Arcalock Clamp in a distinctive gold-anodized finish. Shop more from Area 419 or browse our full Scope Bases selection at Schaefer Defense.