ARCA Plate - KeyMod 3" The FatBoy Tripods 3” KeyMod Arca Rail Mount is a compact, reliable solution for adding tripod compatibility to your rifle or spotting scope cage. Built for direct mounting to KeyMod handguards, this 3-inch rail delivers a secure interface with any 1.5” / 38mm Arca-Swiss tripod clamp. Precision-machined in the USA from high-quality materials, the 3” length keeps things lightweight and streamlined—ideal for low-profile builds or minimalist setups. Whether you're hunting, shooting PRS, or glassing in the backcountry, this rail gives you rock-solid performance without extra bulk. Key Features: 3” length for compact, lightweight mounting Attaches directly to KeyMod handguards Compatible with 1.5” / 38mm Arca-Swiss tripod clamps Made in the USA from premium materials Ideal for rifles, spotting scope cages, and minimalist builds Specifications: Keymod Length 3" Width 1.5" Catch Stop 3/32"