The Springfield Armory Echelon 4.5F Low Capacity OD Green adapts the highly modular, duty-grade features of the full-size Echelon platform into a rugged configuration optimized for state compliance in capacity-restricted jurisdictions. Chambered in 9mm Luger, this full-sized handgun features a 4.5-inch cold hammer-forged steel barrel and a billet-machined slide finished in tactical Olive Drab Green Cerakote. At its core is the self-contained, serialized Central Operating Group (COG) chassis system, which allows the fire control unit to be easily swapped into completely different grip modules. Its innovative plate-free Variable Interface System (VIS) allows over 30 popular micro optics to mount directly and deeply into the slide configuration for an incredibly low profile. Crucially, while this "LC" (Low Capacity) model 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.