Springfield’s Grip Modules for the Echelon 4.0C

When Springfield Armory released the Echelon 4.0C, I was an early adopter. The original Echelon 4.5F had impressed me, and I was wanting a more compact version with all the same features. The 4.0C was all of that and more.
I say “more” because the shorter slide assembly made the gun perfectly balanced in my hand. I hadn’t expected that the gun would be better balanced in my hands as the full-sized pistol felt great. Nevertheless, the 4.0C is now my preferred duty-style pistol.
Like the 4.5F, Springfield Armory built the 4.0C around a modular system that allows you to tailor the pistol to your hands using grip modules.
What Is the Springfield Echelon 4.0C Grip Module?
The Echelon 4.0C grip module is the polymer portion of the gun that you hold when shooting the pistol. It houses the Central Operating Group that contains the trigger assembly and other fire control components.

A lot of people refer to the grip module as the frame of the gun. But that’s not, in my opinion, the most accurate description. Gun frames are often interpreted to mean the receiver. For most handguns, that is the grip portion of the pistol as the fire control components are integral to it. That is not the case with the Echelon.
Echelon pistols use the aforementioned separate Central Operating Group, which is not part of the grip module. It is the Central Operating Group that is the serialized receiver, or the legally defined part that is the “firearm”. While the Central Operating Group rides in the grip module, it is distinctly a separate entity.
Since the Central Operating Group is not part of the grip module, the grip modules are not controlled by the Gun Control Act of 1968. This allows you to buy grip modules just like you would custom walnut grips for your 1911. They can ship right to your door.

Just like 1911 grips or revolver stocks, Echelon grip modules allow you to custom fit the gun to your hand for improved accuracy. Additionally, they give you color options.
The Echelon 4.0C grip module is specifically cut down in size compared to the full-size 4.5F. It keeps the same internal dimensions, but the grip length is shorter to better suit concealed carry or smaller hands.
Three Sizes: Small, Medium, and Large
Springfield Armory makes the 4.0C grip frame in three sizes: small, medium and large. These sizes refer to the total gripping area of the modules. In general, the larger your hands, the larger the module you might like.

All of the Echelon 4.0C modules ship with a magazine release pre-installed, so there is no fiddly work needed. If you can field strip the Echelon pistol, you can easily install one of the new factory modules.
Each grip module from Springfield Armory includes three color-matched backstraps to fine-tune the fit even further. Three module sizes with three differently sized backstraps give you a significant amount of customization to find the best fit for your hand.
Typically, I like thinner pistols, so I was surprised to find that the large module worked best for me. With the medium backstrap, the large grip module gave me a consistent, natural point.
Of course, everyone is different. I had a buddy with smaller hands try the small, and he immediately found better control and less shifting under recoil.
Grip Colors: Black, FDE, and OD Green
In addition to sizing, you can choose one of three colors for your Echelon 4.0C grip module. Currently, Springfield Armory is offering Desert FDE (Flat Dark Earth) and OD Green (Olive Drab) in addition to the standard black. The finish is molded-in polymer, not paint or Cerakote, so you don’t get weird wear patterns over time.

Black is classic, of course. It matches most holsters and goes unnoticed in professional settings. If you are carrying for a job — police or security — black is likely the way to go.
Desert FDE and OD Green modules are driven by your specific tastes. These color options help you build out a platform that doesn’t look like every other handgun at the shooting range. To my eye, the OD Green is a subtle variation from black, while Desert FDE is an obvious color change. I think both colors are well executed and attractive.
Who Needs a Grip Module Like This?
Anyone serious about concealed carry, duty use or just enjoyable range days with the Echelon 4.0C should at least try the different grip modules. Getting the perfect hand fit with your gun can bolster your shooting and confidence.

If you’re sticking with the factory configuration, you could be leaving some accuracy and precision on the table. Sizing isn’t cosmetic; it can be a functional improvement in your shooting.
Of course, color options are always a nice way to express a bit of individuality. And there is nothing wrong with buying another color just because you want to.
Tips to Installing the Springfield Grip Modules
Swapping grip modules on the Echelon line of handguns is a simple and straightforward operation. Nevertheless, I learned a few small tricks that make the process even easier. Try these steps and tips:
1. Unload and clear the gun. Remove all ammunition from the area.
2. Field strip the pistol according to Springfield Armory’s instructions. Once the slide is removed, you can begin the process of changing modules.

3. On the right side of the gun, push the flat end of the disassembly lever in. You don’t have to push it very far in — just enough so your fingers can get a grip on the lever on the left side of the module. You can use your finger or a non-marring tool to push it in.

4. A slight pulling pressure on the disassembly lever will free it from the right side of the Central Operating Group. Pull the disassembly lever so that the end is now in contact with the left side of the Central Operating Group.
5. Pull and twist the disassembly lever in a clockwise motion. Some force is necessary. As you twist, the disassembly lever will work free of the Central Operating Group and you can remove the disassembly lever completely. Set it to the side.

6. Lift up on the slide stop lever and push the Central Operating Group toward the front of the grip module. If you have never removed the Central Operating Group before, it may be a little tight in the module. This is normal. You can use a wooden dowel or other non-marring tool to push the Central Operating Group forward. It will not need to move very far forward — I’d estimate less than 1/8” — and it will be obvious when you have moved it.
7. Lift the rear of the Central Operating Group while also pressing lightly on the trigger. The Central Operating Group will pivot on the front end, and you will be able to lift the assembly out of the grip module.

Installing the Central Operating Group in a new grip module is just a reversal of the removal process. However, there are a couple of tips that can help make the process a little quicker.
First, remember that the forward end of the Central Operating Group “hooks” into the module, which is why it pivots when you removed it from the old module. Ensure that the front end is properly seated prior to trying to slide the rest of it into the grip module.

Second, when you do have the Central Operating Group seated into the grip module, be sure to slide it to the rear to lock it into place. You can look through the disassembly lever holes on the grip module to ensure the Central Operating Group is correctly in position. If the holes are obstructed, the Central Operating Group is not seated properly.
Finally, when reinserting the disassembly lever, press while rotating in a clockwise motion. Keep pressing while rotating, and the lever will slip through fairly quickly. Once you do it a few times, you should get the feel for it.
Final Thoughts
When it made the Echelon pistols, Springfield Armory rethought the way it could serve shooters of all hand sizes and needs. With three grip module sizes, three included backstraps with each, and three color options, you get a ton of flexibility. That kind of modularity is rare — especially with it all being factory parts with zero gunsmithing needed.
Whether you’re trying to fine-tune recoil control or just find something that feels better in the hand or matches your outfit, checking out the Springfield Armory grip modules is a smart place to start. And in my experience? It works.
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