Magpul M-LOK ARCA / Dovetail Rails
Maximum rigidity between rifle and tripod—built for serious hunters
The Magpul M-LOK ARCA (Dovetail) Rails are one of our preferred solutions for hunters and precision shooters who demand the most rigid possible interface between their rifle and support systems. Designed around the ARCA-Swiss / dovetail standard, these rails provide a secure, repeatable connection to tripods, bipods, and most modern ball heads available today.
For tripod-based hunting—especially predator, varmint, and western-style spot-and-shoot setups—ARCA has become the gold standard. The Magpul system delivers that stability in a lightweight, durable, and field-proven package.
Why ARCA / Dovetail
The ARCA-Swiss (dovetail) interface offers major advantages over traditional picatinny adapters:
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Full-length clamping surface for maximum rigidity
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Excellent fore/aft balance adjustment on tripods
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Rock-solid lockup under recoil
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Compatible with most ARCA clamps and ball heads on the market
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Ideal for tripod, bipod, and barricade-style support
For hunters seeking confidence in awkward field positions, this is the system we recommend.
Construction & Design
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Precision-machined aluminum
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Hard-anodized finish
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Direct M-LOK mounting
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True ARCA / dovetail geometry
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Lightweight while maintaining stiffness
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Made in the USA
Available Models & Specifications
2-Slot ARCA Rail
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Length (max): 3.15 in.
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Weight: 1.31 oz.
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Height: 0.20 in.
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Width: 1.50 in.
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M-LOK Slots: 2
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Best For: Lightweight hunting rifles, compact builds, minimal rail footprint
4-Slot ARCA Rail
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Length: 7.75 in.
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Weight: 2.79 oz.
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Height: 0.20 in.
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Width: 1.50 in.
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M-LOK Slots: 4
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Best For: General-purpose hunting rifles, balanced tripod positioning
6-Slot ARCA Rail (Pro 700 Specific)
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Length: 13.25 in.
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Weight: 4.49 oz.
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Height: 0.20 in.
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Width: 1.50 in.
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Compatibility:
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Fits Magpul Pro 700 Stock M-LOK forends
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Accepts RRS Dovetail Standard compatible accessories
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Not compatible with other M-LOK handguards without overhanging
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Best For: Maximum stability on Pro 700 platforms and long support surfaces
Compatibility & Use
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ARCA-Swiss / Dovetail clamps
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Most modern tripod heads and ball heads
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ARCA-compatible bipods
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Ideal for:
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Predator and varmint hunting
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Tripod-based field shooting
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Precision rifle applications
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Important Installation Disclaimer
Magpul supplies longer M-LOK mounting screws with these rails.
On rifles with very slim handguards and larger-profile barrels, these screws may contact the barrel if installed without checking clearance.
Recommended solutions:
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Use shorter M-LOK screws, or
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Trim the included screws to proper length
Always verify clearance before firing.
Ally Munitions Notes
The Magpul M-LOK ARCA Rails are yet another product that has earned a permanent place in our lineup. For hunters chasing ultimate rigidity between rifle and tripod, bipod, or ball head, this system consistently delivers simplicity, strength, and real-world reliability.
Legal & Sales Notice
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Ensure proper installation and barrel clearance before use
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Confirm compatibility with your ARCA clamp or support system
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Follow all firearm safety rules
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All accessory sales are final