The Springfield Armory Echelon 4.5F Gear Pac represents the pinnacle of modern, uncompromised full-size duty performance. Engineered around a revolutionary serialized, self-contained Central Operating Group (COG) chassis, this firearm offers unparalleled frame and modular adaptation options. Built to optimize rapid strings of fire, this comprehensive factory bundle comes equipped with a co-witnessed Viridian® RFX11 green dot optic utilizing the direct-mount Variable Interface System (VIS) to eliminate adapter plates. Delivered ready to deploy, the EC9459B-PAC Gear Pac bundle arrives nestled inside a multi-compartment, heavy-duty padded nylon zippered range bag accompanied by an expanded payload of four factory steel magazines (three 17-round flush profiles and one 20-round extended backup).