Springfield Echelon 4.0FC Comp: Full-Size Grip, Compact Comped Slide, 17+ Rounds of 9mm

Hey channel fans and family. Springfield Armory just dropped another Echelon, and this one is the combo a lot of people have been building on their own: the Echelon 4.0FC Comp. It’s a full-size grip module with the compact 4″ slide on top, and that slide has an integral compensator built in.

Short version: duty-size capacity, a shorter slide that’s quicker to handle, and a comp to keep the muzzle flatter. All of it runs on the same modular Echelon chassis.

Quick note: this one is based on Springfield Armory’s press release and its product pages. I haven’t shot the 4.0FC Comp yet.

TL;DR

What it is: a 9mm Echelon that pairs a full-size grip module (with compact dust cover) and a compensated 4″ compact slide assembly.
Capacity: ships with one flush 17-round mag and one extended 20-round mag. 15-round and 10-round versions are available for restricted states.
Optics: the Variable Interface System (VIS) lets you mount 30+ optics directly to the slide with no adapter plates.
Sights: tritium/luminescent front with Springfield’s Tactical Rack U-Dot rear. The front sight sits behind the comp.
Variants: standard, 15-round, low-capacity, plus Gear Pac and FIRSTLINE versions.

Key specs (from Springfield Armory)

Caliber: 9mm
Barrel: 4″, hammer-forged steel, Melonite finish, 1:10 twist, integral compensator
Slide: billet machined, Melonite finish, optics-ready, integral compensator
Frame: black polymer full-size grip module with compact dust cover
Fire control: stainless steel Central Operating Group (COG), the serialized part, which moves between grip modules
Sights: tritium/luminescent front, Tactical Rack U-Dot rear
Recoil system: captive
Grip width: 1.2″
Weight: 24 oz with flush mag, 25 oz with extended mag
Length: 7.25″
Height: 5.5″ with flush mag, 6.5″ with extended mag
Magazines: (1) 17-round and (1) 20-round
Controls: fully ambidextrous

The comp and the slide

Springfield says the integral comp redirects gas upward to cut muzzle rise. Since the front sight sits behind the comp, you get a clean sight picture over the top. The slide also has a trench cut ahead of the action to give you an index point for press checks and charging, a flared rear for grip, and deep front and rear serrations that carry around the corners. Springfield counts four distinct engagement surfaces in all.

Same as the rest of the Echelon line, the brains of the gun is the Central Operating Group. It’s a self-contained stainless chassis, and Springfield says you can move it between grip modules in seconds. So if you already own an Echelon, the 4.0FC Comp is basically another configuration of the system you already know.

The lineup

Here’s what Springfield lists for the 4.0FC Comp:

Standard – 17- and 20-round mags (EC9409BFC-U-COMP)
15-round – restricted-locale version (EC9409BFC-U-COMP15)
Low capacity – 10-round version (EC9409BFCLC-U-COMP)
Gear Pac – adds a factory-installed Viridian RFX11 green dot, four magazines total and a pistol bag. Springfield’s spec sheet lists a white-dot front sight on this one instead of tritium (EC9409BFC-COMP-PAC).
FIRSTLINE – sold through Springfield’s FIRSTLINE dealers, with three mags in the box (two 17s and one 20) (EC9409BFC-U-COMP-FL)

Who it’s for

Range and EDC folks with bigger hands who want a full grip but a shorter slide that’s easier to draw and carry.
Comp fans who want a flatter-shooting 9mm without adding a slip-on comp or buying a separate barrel.
Red dot shooters. VIS direct mounting means no plate stack, so the optic sits low.
Existing Echelon owners who like the modular COG idea and want another configuration.
Restricted-state shooters, since there are 15- and 10-round versions from the start.

Our take

This is a smart mix-and-match from Springfield. The Echelon’s whole pitch is modularity, and the 4.0FC Comp takes the best part of three existing models (full-size, compact and comped) and sells them as one factory pistol. A full grip with a 4″ comped slide is a really good all-rounder on paper: plenty of rounds, easy to control, and still carryable for a lot of people. Springfield calls it “equally ideal for both the range or EDC.” What I want to see before I sign off: how much the comp actually flattens things out with standard-pressure range ammo versus hotter defensive loads, how much extra blast and flash it throws when you carry it, and whether your current Echelon holster still fits with the comped slide. Still, if I were shopping for one Echelon to do everything, this is the one I’d look at first.

Where to find it

Springfield lists every 4.0FC Comp version on its Echelon 4.0FC Comp page, with a dealer locator. Want to add a dot yourself? Viridian sells an RFX11 made for the Echelon. It mounts straight onto the VIS with no plate.