The Springfield Armory Echelon 4.0C 15-Round Comp Black delivers flatter-shooting recoil management in a carry-friendly compact size, specifically configured for states with a strict 15-round magazine capacity limit. Chambered in 9mm Luger, this striker-fired pistol features a 4-inch cold hammer-forged steel barrel and a slide with a rugged black Melonite finish. Its standout feature is a single top-ported expansion chamber machined directly into the barrel and slide assembly to redirect high-pressure gases upward, drastically flattening muzzle flip for rapid target re-acquisition. Operating entirely on the modular, serialized Central Operating Group (COG) chassis system, it retains premier features like the plate-free Variable Interface System (VIS) for direct optic integration and premium tritium U-Dot night sights. Designed to meet local capacity restrictions, this model substitutes high-capacity magazines to ship with two flush-fitting 15-round magazines.