Springfield's Echelon 4.0FC Comp packs a built-in compensator into compact slide
Springfield Armory just built a compact-slide 9 mm with a full-size grip and a compensator machined right into the barrel and slide.
Snapshot
The Echelon 4.0FC Comp blends a 4-inch compensated slide with a full-size grip module, keeping overall length to 7.25 inches while still running a 17-round flush-fit magazine. It's built on the same serialized Echelon chassis Springfield introduced in 2023, per SSUSA.
Key points
- Integral comp: The compensator is cut directly into the barrel and slide rather than threaded on, venting gas upward to tame muzzle rise without adding length.
- Mixed frame sizes: A full-size grip under a compact slide gives shooters 17 rounds flush and 24 ounces unloaded, with a 20-round extended mag included in the box.
- Same platform underneath: The Central Operating Group chassis carries the serial number and swaps between grip modules, and the Variable Interface System reportedly fits more than 30 optics with no adapter plates.
- Build details: Hammer-forged barrel with 1:10 twist, billet slide, Melonite finish, ambidextrous controls, and front/rear serrations that wrap the slide's corners.
- Price and options: MSRP is $784, with restricted-state versions shipping 15- or 10-round mags at the same price, plus Gear Pac and Firstline variants available.
Quick take
This is Springfield Armory leaning into a niche a lot of carry shooters have asked for: comp control without the extra length that usually comes with it. Whether the ported design earns its keep in recoil management is something you'll want to see tested rather than take on spec sheet alone, but the full-size-grip/compact-slide formula paired with a built-in compensator is a genuinely different approach to the Echelon line.
Read the full story: ssusa.org