The Springfield Armory Echelon 4.0C Low Capacity Comp Black brings flat-shooting, integrally compensated recoil control to a carry-friendly compact format optimized for capacity-restricted states. 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. A single top-ported expansion chamber is built directly into both the barrel and slide assembly, redirecting burning gases upward to flatten muzzle flip and accelerate target tracking. 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 low-profile optic mounting and tritium U-Dot night sights. Crucially, while this "LC" version limits ammunition storage to two flush-fitting 10-round magazines, it retains the standard slide profile with a visual viewing port loaded chamber indicator and lacks a physical magazine disconnect safety.