Armaspec ARCA Rail 12 Slot M-LOK 12" Black Anodized Aluminum - AR-15/AR-10

The Armaspec ARCA Rail is a 12-slot accessory rail section that mounts directly to M-LOK handguards and adds a standard Arca-style dovetail interface to the host firearm. Designed to fit any AR-15 or AR-10 with M-LOK handguards, this rail gives shooters a flat, full-length mounting surface for rapidly attaching and detaching tripods, bipods, ball heads, and other Arca-compatible accessories used in long-range, hunting, and competition applications.

Machined from 6061-T6 aluminum and finished in Mil-Spec Type III hard coat anodized black, the rail is built to withstand hard use in the field while keeping weight to a minimum. At 12" in length, it provides ample real estate for adjustable Arca clamp positioning along the rail, allowing the user to fine-tune balance and clearance around optics and other mounted accessories.

Installation is straightforward: the rail slides into the M-LOK slots of the existing handguard and locks down with the included hardware, creating a stable, repeatable mounting platform with no permanent modification to the host rifle.