The Springfield Armory Echelon 4.0C Comp Black introduces flatter-shooting recoil management directly to a carry-friendly layout. Chambered in 9mm Luger, this striker-fired pistol features a 4-inch cold hammer-forged steel barrel and slide finished in a durable black Melonite. Its standout feature is a discreet, single top-ported expansion chamber built directly into both the barrel and slide assembly to redirect high-pressure gases upward, noticeably reducing muzzle flip for faster tracking. Operating entirely on the modular, serialized Central Operating Group (COG) chassis system, it retains premium full-size features like the plate-free Variable Interface System (VIS) for direct optic integration and co-witnessing tritium U-Dot night sights. This compact compensated profile ships standard with one 15-round flush magazine and one 18-round extended magazine.