Engineered for shooters who demand adaptability without compromise, the Echelon 4.0 FC blends full-size capacity with a more compact slide profile for balanced, all-purpose performance. Built around Springfield Armory's innovative Central Operating Group(TM), this platform delivers modular flexibility in a duty-ready configuration. Outfitted with a factory-installed Viridian RFX11 Green Dot and finished in black, the 4.0 FC is ready for defensive use, range work, or professional applications right out of the box. At the core of the Echelon is the Central Operating Group(TM), a serialized chassis system that allows for modular customization while maintaining a robust, duty-grade foundation. Paired with a 4-inch barrel and full-length grip, the 4.0 FC offers enhanced control and capacity without the bulk of a traditional full-size slide. Springfield's Variable Interface System(TM) sets this pistol apart, allowing direct mounting of a wide range of popular optics without the need for adapter plates. The included Viridian RFX11 Green Dot provides rapid target acquisition with a highly visible aiming point, especially in bright conditions. Fully ambidextrous controls ensure accessibility for all shooters, while tritium/luminescent U-Dot(TM) sights offer reliable visibility in low-light environments. With four 17-round magazines included, this platform is built for extended use with minimal downtime-making it a versatile option for duty, defense, and serious range time. Specifications: Caliber: 9mm Barrel Length: 4" Capacity: 17 rounds (4 magazines included) Optic: Viridian RFX11 Green Dot (installed) System: Central Operating Group(TM) (serialized chassis) Optics Mounting: Variable Interface System(TM) (direct mount) Sights: Tritium/luminescent U-Dot(TM) sights Controls: Fully ambidextrous Frame: Full-size grip with compact slide configuration Finish: Black Use Case: Duty, defense, range shooting