The Springfield Armory Echelon 4.5F Full Size Comp Gear Pac maximizes uncompromised full-size duty accuracy with flat-shooting, recoil-flattening technology right out of the box. Chambered in 9mm, this tactical pistol features an integrally compensated slide and barrel system designed with a single, top-facing port. This layout vents expanding high-pressure combustion gases upward to dramatically diminish muzzle rise and accelerate target re-acquisition during rapid fire strings. Operating on a serialized Central Operating Group (COG) chassis inside a rugged polymer frame, it provides exceptional ergonomics and customizable backstrap options. This comprehensive factory Gear Pac bundle maximizes your range value by shipping pre-outfitted with a direct-mounted Viridian® RFX11 green dot optic utilizing the pin-based Variable Interface System (VIS). The complete kit comes safely housed inside a heavy-duty, multi-compartment nylon zippered range bag paired with four factory steel magazines (three 17-round flush-fit baselines and one extended 20-round payload).