The Springfield Armory Echelon 4.0C Low Capacity Desert FDE packages elite modular firearm engineering into a sleek, carry-sized frame configured for compliance in capacity-restricted jurisdictions. Chambered in 9mm Luger, this striker-fired pistol features a 4-inch cold hammer-forged steel barrel and a slide with a durable Desert FDE Cerakote finish. It is built entirely around the innovative, serialized Central Operating Group (COG) chassis system and utilizes the Variable Interface System (VIS) for direct, plate-free optic mounting. Crucially, while this "LC" (Low Capacity) model restricts 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.