The Springfield Armory Echelon 4.5F Low Capacity Comp brings premium, flat-shooting recoil management to a full-sized duty platform configured for compliance in capacity-restricted states. Chambered in 9mm Luger, this striker-fired pistol features a 4.5-inch cold hammer-forged steel barrel and slide finished in a durable black Melonite. It incorporates a single top-ported expansion chamber machined directly into the barrel and slide to redirect gases upward, effectively flattening muzzle flip for fast follow-up shots. Built around the modular, serialized Central Operating Group (COG) chassis system and utilizing the plate-free Variable Interface System (VIS) for direct optic integration, this model provides high-end feature sets with 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 does not incorporate a physical magazine disconnect safety.