Springfield Echelon Central Operating Group (Serialized Chassis) – Not a Complete Pistol

This is NOT a complete pistol. This is the serialized Central Operating Group (COG) for the Springfield Armory Echelon. It is the stainless steel chassis that houses the trigger and fire-control components and carries the serial number. No grip module, slide, barrel, or magazine is included.

Because the COG is the serialized part, it is legally a firearm and must be transferred through an FFL with a background check, just like a complete handgun.