Springfield Echelon 4.0C Comp

The Echelon 4.0C Comp is Springfield's first compensated variant of the Echelon platform, scaled down from the 4.5F duty frame to a Glock 19-class compact and fitted with a one-piece barrel that incorporates an integrated compensator. The comp adds no length to the slide envelope, so Echelon 4.0C holsters generally fit without modification. The 4-inch barrel keeps overall length at 7.5 inches, between a Glock 19 and a Glock 17.

The Variable Interface System (VIS) carries over from the full-size Echelon and mounts 30-plus micro red dots directly to the slide with no adapter plate. Trijicon RMR, RMR HD, SRO, Holosun 407C/507C/508T/509T, Leupold DeltaPoint Pro, Aimpoint ACRO, and Shield RMSc footprints all seat directly. The serialized Central Operating Group (COG) chassis also carries over, so the grip module swaps to small or large without an FFL transfer.

At $748 street ($749 MSRP), the Echelon 4.0C Comp undercuts the SIG P365 X-Macro Comp by roughly $130 while offering a larger grip, full-length rail, more capacity, and the no-plate optic mounting. For shooters who want a duty-grade compensated carry pistol with maximum optic compatibility, the 4.0C Comp is the strongest argument against the P320 X-Carry and Glock 19X comp variants.