The Springfield Armory Echelon 4.0C Compact brings the Echelon series to a concealed-carry and duty-friendly footprint, pairing a 4" Black Melonite steel barrel and a serrated optic-cut steel slide with a black polymer frame and Picatinny rail to deliver a versatile 9mm thats optic-ready out of the box. With Springfield Armorys Variable Interface System you can direct-mount popular red dot sights for fast target acquisition while the tritium U-Dot irons provide reliable backup sighting in low light; the serialized Central Operating Group carries the hardened internals of the full-size model into a compact frame that still yields a 15+1 capacity, striker-fired, smooth trigger feel, and a textured grip that promotes confident control on the draw or at the range. Use this Echelon for everyday concealed carry, duty carry where compact footprint matters, home defense where quick sight transitions count, or range sessions that focus on optics-equipped shooting. The combination of durable Melonite barrel finish, sighting system flexibility, and familiar Springfield ergonomics makes the EC9409BU15 an easy-to-sell option for shooters seeking an optic-capable compact 9mm; FFL transfer required.