Seekins Precision 0011700171-F Arca Rail 6 Slot M-Lok 6061-T6 Alumn 13.63"

The Seekins Precision Arca Rail is a 13.63-inch modular accessory rail designed for shooters who want standardized mounting versatility on their precision rifles and competition platforms. Built from 6061-T6 aluminum, this rail integrates Arca-Swiss compatibility with M-Lok attachment points, giving you the flexibility to run industry-standard accessories and adapt your setup as your needs evolve.

Whether you're setting up a long-range hunting rig, a competition rifle, or a tactical platform, an Arca rail lets you standardize your optics mounting, bipod attachment, and accessory positioning across multiple firearms. The M-Lok interface means it locks directly into your handguard or chassis without the need for separate mounting solutions, while the Arca-Swiss profile keeps your accessories compatible with a wide range of third-party gear. Seekins Precision's reputation for tight tolerances and dependable engineering carries through to this rail—it's made to last through countless round counts and gear swaps.

The 13.63-inch length strikes a practical balance: long enough to give you mounting options along most modern rifle platforms, short enough to keep your setup manageable and avoid unnecessary weight. If you're upgrading your rifle's accessory mounting or building a new platform from the ground up, this rail simplifies the process and gives you real flexibility down the road.

Key Features

• Arca-Swiss profile for standardized, industry-compatible accessory mounting
• M-Lok slots for secure direct-to-handguard or chassis attachment
• 6061-T6 aluminum construction—lightweight, rigid, and proven in demanding conditions
• 6-slot design provides multiple accessory positioning options
• 13.63-inch length accommodates most modern rifle platforms

Specifications

Frequently Asked Questions

What is Arca-Swiss and why does it matter?

Arca-Swiss is an industry standard for accessory mounting that originated in precision rifle work. It allows you to use a single accessory (like a bipod, mount, or bag rider) across multiple firearms without needing separate mounting plates. If you're building a precision rifle or competition rig, Arca compatibility keeps your gear modular and interchangeable.

Can I mount this rail directly to my handguard?

Yes. The rail features M-Lok slots, which means it attaches directly to any M-Lok-compatible handguard or chassis. No additional mounting hardware or adapters are required—it locks in securely.

What accessories can I attach to this rail?

Any accessory with an Arca-Swiss foot or clamp (bipods, scope mounts, cable management, accessory bags, etc.) will attach to the Arca profile. The M-Lok interface determines what can mount directly to your handguard or chassis.

Is 13.63 inches a standard rail length?

This length works well on modern rifle platforms with free-floating or modular handguards. For specific fitment on your rifle, verify your handguard's rail space and your intended accessory positions before ordering.