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The FatBoy™ Tripods 3” KeyMod Arca Rail Mount is a compact, reliable way to add tripod compatibility to your rifle or spotting scope cage. Designed for direct mounting to KeyMod handguards, this 3-inch rail creates a solid interface with any 1.5” / 38mm Arca-Swiss tripod clamp.
Precision-machined in the USA from premium materials, its 3” length keeps your setup lightweight and streamlined—perfect for low-profile builds or minimalist rigs.
Whether you’re hunting, competing in PRS, or glassing in the backcountry, this rail delivers rock-solid stability without unnecessary bulk.
Key Features