The Springfield Armory Echelon 4.0FC Gear Pac delivers professional-grade duty performance in a highly efficient, modular configuration. This special package seamlessly blends the fast handling of a 4-inch compact slide with the recoil-taming surface area of a full-size frame. At its core sits the serialized Central Operating Group (COG) chassis, allowing deep end-user customization. This package comes completely race-and-duty ready, featuring a factory-installed Viridian® RFX11 green dot optic mounted directly via the patent-pending Variable Interface System (VIS). Shipping in a heavy-duty, multi-compartment nylon zippered pistol bag, it bundles four 15-round magazines to maximize training volume out of the box.