Area 419 ARCALOCK 12″ M-LOK Dovetail Rail

Description

The Area 419 ARCALOCK 12″ M-LOK Dovetail Rail is a full-length Arca-style rail engineered to provide mechanically secure indexing for precision accessories on compatible forends. It installs to M-LOK-equipped stocks and requires six consecutive M-LOK slots for attachment. The rail is backward compatible with standard Arca accessories but only locks when paired with an Area 419 ARCALOCK clamp. Construction and finish are tuned for durability and repeated use in precision shooting setups.

Key Specifications

• The rail length is 12 inches to cover the full length of the forend.
• Attachment requires 6 consecutive M-LOK slots on the host forend.
• The rail interfaces with an Area 419 locking clamp to mechanically lock in place.
• The profile is made to the RRS 1.5″ dovetail standard for Arca compatibility.
• The body is constructed from 6061-T6 aluminum.
• The surface is finished with Type III hard coat anodizing for wear resistance.
• The rail features serrated sides that interface with the proprietary clamp to prevent movement under load.
• M-LOK slots on the underside allow attachment of M-LOK accessories directly to the rail.
• The rail includes M-LOK mounting hardware for installation.
• Made in the USA from USA-sourced aluminum on domestic CNC equipment.

Engineered for shooters who demand repeatable, locked indexing for rests, barricade stops and precision accessories, the ARCALOCK 12″ M-LOK Dovetail Rail delivers a robust, compatible platform without unnecessary bulk. Its Arca-compatible profile and M-LOK underside provide flexible mounting options while the locking serrations and Area 419 clamp remove play for more consistent positioning — a straightforward upgrade for precision-focused builds.

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