Echelon 4.0FC COA Review: The Factory Optic Gun to Beat

Springfield Armory and Aimpoint did not just bolt a red dot onto an Echelon and call it innovation. The 4.0FC COA feels like a factory-built optic pistol that actually starts where most plate-mounted guns stop, with a lower, cleaner, tougher setup that makes a whole lot of sense the moment you pick it up.