Springfield Echelon 4.0C, Semi-automatic, Striker Fired, Polymer Framed Pistol, Comp Size, 9MM, 4 Barrel, Melonite Finish, Black, Optics Ready Slide, Front Tritium Night Sight, Tactical Rack U-Dot Rear, 10 Rounds, 2 Magazines, Massachusetts Compliant EC9409BLC-U Engineered for carry, the Springfield Armory Echelon 4.0C retains the key features of the full-size model, with a shorter 4-inch barrel and compact frame for enhanced concealability. Its revolutionary Variable Interface System provides unmatched direct-mount compatibility with today's leading red dot sights, complemented by tritium U-Dot irons for fast target acquisition. The serialized Central Operating Group is housed in a compact frame, offering a 10-round capacity with the flush 2 magazines.