Evolution Gun Works Flat Smooth Mainspring Housing Review

Let’s Talk About Evolution Gun Works Flat Smooth Mainspring Housing

The Evolution Gun Works Flat Smooth Mainspring Housing is a drop-in replacement part for 1911 pistols, designed to enhance both aesthetics and functionality. Manufactured by Evolution Gun Works, this mainspring housing is machined from solid bar stock carbon steel. It offers a robust alternative to polymer housings, providing improved durability and a more traditional feel for 1911 enthusiasts.

I encountered issues with the factory polymer mainspring housing on my custom 1911 build; it felt flimsy and out of place. I was looking for a durable, steel alternative that would improve the overall feel and balance of my pistol. I was also looking for a flat profile.

Upon receiving the Evolution Gun Works Flat Smooth Mainspring Housing, the first thing I noticed was its heft and the quality of the blued finish. The weight felt substantial and the machining was clean and precise. Compared to plastic mainspring housings, the EGW part exudes quality.

I considered other options from Wilson Combat and Ed Brown, but chose the EGW housing due to its reputation for quality at a reasonable price point and its flat profile. It also promised compatibility with WWI 1911s, a key factor for my classic build. My first impression was overwhelmingly positive; the part felt well-made and ready to install.


Real-World Testing: Putting Evolution Gun Works Flat Smooth Mainspring Housing to the Test

First Use Experience

I installed the Evolution Gun Works Flat Smooth Mainspring Housing on my 1911 at my workbench before heading to the range. Installation was straightforward, requiring only the original mainspring, pin, and retaining pin. At the range, I immediately noticed a difference in the pistol’s balance and the solid feel in my hand.

The weather was slightly damp, but I experienced no issues with grip or handling. The flat profile of the housing provided a consistent and comfortable grip angle. There were no immediate surprises or issues following the installation.

Extended Use & Reliability

After several months of consistent use, the Evolution Gun Works Flat Smooth Mainspring Housing has held up remarkably well. There are no signs of wear or tear on the blued finish, even after repeated handling and cleaning. The housing remains securely in place.

Maintenance is simple, requiring only occasional cleaning with a bore brush and solvent. The EGW mainspring housing has definitely outperformed the original polymer housing, providing enhanced durability and a more positive shooting experience. I’ve carried it in both leather and kydex holsters without any issues.

Breaking Down the Features of Evolution Gun Works Flat Smooth Mainspring Housing

Specifications

  • Material: Machined from solid bar stock carbon steel for superior strength and durability. This is a significant upgrade over polymer housings, providing a more robust and reliable component.
  • Finish: Features a blued carbon steel finish, offering a classic look and corrosion resistance. The blued finish blends seamlessly with the rest of a blued 1911.
  • Design: A flat mainspring housing, which alters the grip angle slightly compared to an arched housing. This can significantly affect the shooter’s comfort and control.
  • Compatibility: Designed for 1911 Government and WWI 1911s. Note that it does not fit STI’s or short grip frames.
  • Checkering: N/A (Smooth), offering a clean and classic look. A smooth finish is generally easier to clean and maintain.

These specifications are important because they directly impact the durability, ergonomics, and aesthetics of the 1911. The solid steel construction ensures longevity, while the flat design allows for personalized grip preference.

Performance & Functionality

The Evolution Gun Works Flat Smooth Mainspring Housing significantly improves the overall feel and balance of the 1911. The flat profile promotes a more natural and consistent grip angle. The housing’s primary function is to house the mainspring, which is essential for hammer function and ignition.

One notable strength is its robust construction, while a potential weakness is the lack of checkering, which might affect grip in certain situations (easily remedied with aftermarket grip tape). It absolutely meets expectations, providing a reliable and aesthetically pleasing upgrade.

Design & Ergonomics

The build quality is excellent, with clean machining and a consistent blued finish. The weight adds a sense of quality and contributes to improved balance. The flat design might require a brief adjustment period for those accustomed to arched housings, but it ultimately provides a comfortable and secure grip.

The design is exceptionally user-friendly, being a direct drop-in replacement with no modifications required. The smooth surface provides a clean and classic aesthetic.

Durability & Maintenance

Given its solid steel construction, the Evolution Gun Works Flat Smooth Mainspring Housing is built to last a lifetime. Regular cleaning and lubrication will ensure long-term reliability. The blued finish is relatively easy to maintain.

Accessories and Customization Options

The Evolution Gun Works Flat Smooth Mainspring Housing itself doesn’t require accessories. However, it can be paired with different mainspring weights to customize trigger pull. It’s compatible with any standard 1911 mainspring. There are no included accessories.

Pros and Cons of Evolution Gun Works Flat Smooth Mainspring Housing

Pros

  • Enhanced Durability: Machined from solid bar stock steel, far superior to factory polymer housings.
  • Improved Balance: Adds weight to the lower portion of the pistol, improving balance and recoil management.
  • Aesthetic Upgrade: Provides a classic and refined appearance to any 1911.
  • Drop-in Replacement: Easy installation with no gunsmithing required.
  • Flat Profile: Allows for a more consistent grip angle.

Cons

  • Lack of Checkering: The smooth surface may not provide sufficient grip for all users (easily remedied with aftermarket grip tape).
  • Blued Finish: While attractive, it may show wear over time, requiring occasional refinishing.


Who Should Buy Evolution Gun Works Flat Smooth Mainspring Housing?

This Evolution Gun Works Flat Smooth Mainspring Housing is perfect for 1911 enthusiasts looking to upgrade their pistol’s durability, aesthetics, and balance. It’s ideal for shooters who prefer a flat mainspring housing profile and appreciate a classic, clean look. It’s also good for competitive shooters looking for reliability.

Those who prefer aggressive grip texturing or require ambidextrous features on the mainspring housing may want to explore other options. However, this EGW housing is difficult to beat.

Must-have accessories include a quality set of 1911 punches for disassembly and a reliable gun lubricant.

Conclusion on Evolution Gun Works Flat Smooth Mainspring Housing

The Evolution Gun Works Flat Smooth Mainspring Housing is a worthwhile investment for any 1911 owner seeking enhanced durability, aesthetics, and performance. At $51.99, the price is justified by the quality of materials and craftsmanship.

I would absolutely recommend this product to fellow 1911 enthusiasts. It’s a simple yet effective upgrade that significantly enhances the overall shooting experience. Upgrade your 1911 today with the Evolution Gun Works Flat Smooth Mainspring Housing and experience the difference a quality part can make.

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