Springfield Armory has begun offering the Echelon Central Operating Group as a standalone product. This serialized chassis contains the fire control parts and serves as the legal firearm.

Grip modules, slide assemblies, barrels, sights and magazines remain available separately from the company and aftermarket sources. Grip choices include Compact and Full-Size versions, while slides come in two lengths with optional integral compensation from the Pro Comp series. The unit is made of stainless steel with tool-steel trigger components that are polished and coated, and it incorporates a second sear meant to reduce the chance of firing if dropped.