The Area 419 ARCALOCK 12'' Universal Dovetail Rail Black from Area 419 Firearms LLC is a purpose-built rail system engineered to lock securely with our exclusive Area 419 clamp, delivering a rigid, motion-free interface for precision shooting. This 12-inch rail features serrated sides that mechanically lock in place without damaging bags or hands, and its compatibility with standard Arca accessories remains intact only when used with the Area 419 clamp, ensuring a stable platform across a variety of setups. Made from 6061-T6 aluminum and finished with Type 3 hard coat anodizing, the rail weighs a mere 4.1 oz yet provides robust durability and long-term service life. It adheres to the RRS 1.5" dovetail standard so lever clamps will work, and every corner is radiused with chamfered edges for a clean, safe handling experience. Designed to fit a range of rifle configurations with accessible front action screws and front attachment points, the ARCALOCK rail can be attached at up to four points for maximum strength and stability. The rail accommodates USA-made production from USA-sourced aluminum on USA-made CNCs and includes the extra Remington 700-style action screw for installation, with tee-nuts and hardware provided as needed.