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GI ARCHED MAINSPRING HOUSING Reviews & Ratings

The serrations on this mainspring housing help get the weight in the right place and gives you good traction.

Pins and springs do not come with this part. You can use the pins and springs from your original mainspring housing or purchase new parts from us. This mainspring housing makes a great replacement for plastic mainspring housings.

This is our premium mainspring housing, designed and made by EGW. Fully machined from bar stock. This item will fit 1911 Government and Commander frames, it will not fit STI's or short grip frames. Our G.I. Arched Mainspring Housing is machined from carbon steel barstock. Lanyard loop and pin are supplied.

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Reviews Summary

Customers are highly satisfied with the GI Arched Mainspring Housing, noting its excellent fit and quality. Many appreciate its comfort during shooting and high-quality machining that rivals more expensive alternatives. However, some users found it challenging to install, requiring additional modifications, which may deter beginners.

What Reviewers Are Saying

Product Quality

85%

Reviewers consistently praise the high quality of the GI Arched Mainspring Housing, noting its excellent machining and finish that closely resembles original GI parts from the 1940s. Many comment on its fit and how it enhances the look of their firearms.

Installation Challenges

30%

Several reviews express that while the product is high quality, it may not be a perfect drop-in replacement for all models, requiring additional fitting or modification. This theme indicates that some users might face challenges during installation.

Comfort and Feel

60%

Customers highlight the comfort and improved feel of their firearms when using this mainspring housing. It enhances the shooting experience, making it more enjoyable, particularly for those looking for ergonomic improvements.

Value for Money

75%

Many reviewers appreciate that the pricing of the mainspring housing is significantly lower than other high-end brands while still offering a comparable quality, making it a great value for consumers.

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Made of Steel

This really makes my Colt look and feel great Feels great when shooting makes it fit great when firing

Would you recommend this? Yes, I would recommend to a friend

by Ricardo Cantu on August 16, 2025

Verified Purchase

Was this review helpful? 3

Great product

Just what I have been looking for. Makes the 1911 grip more comfortable.

by BRAD SHAE on September 06, 2024

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Was this review helpful? 4

EGW GI.Mainspring Housing

Replaced another brand with this one,had no problem going in my SpringField Mil-Spec. 45 A.C.P. pistol.

Would you recommend this? Yes, I would recommend to a friend

by WILLIAM JEFFERS on July 19, 2024

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Was this review helpful? 4

1911 mainspring housing

Great.

by Thomas Sgarlata on July 03, 2024

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Was this review helpful? 2

Doesn't get better than this.

My Brother passed away two years ago. He left me his 1994 Springfield Armory Inc. 1911-A1 . He had made changes to it form the factory model. I was in the 82nd Airborne Div. as a armor in the mid 70's and early 80's before the M1911's were replaced by the M9's. To make a long story short, the Springfield Armory 1911-A1, is back to factory spec. I replaced the flat mainspring housing, with the EGW GI Arched mainspring housing with the lanyard loop. The assembly of all the parts are the same as the army's 1911's. This is a perfect replacement for my 1994 Springfield Armory 1911-A1.

by R. L. Smothers on January 13, 2024

Verified Purchase

Was this review helpful? 8

The best lanyard housing I have found

These are high quality, machined parts, nice blued finish. Very near duplicate of 1940s GI parts. Nice snug fit in O1911C, MKVI 70s colts and PBD9108 Springfield. They are half the price of other high end name brand CAST housings. Looks so good they could be colt factory accessory!! I have yet to regret ANY EGW parts purchase!

The best lanyard housing I have found

Pump The Brakes

I bought this mainspring housing with the express intention of replacing the factory housing on my 2018-production Colt Mk IV Series 70. This housing’s machining and finish are fantastic, but it ended up being ANYTHING but a drop-in part. Have plenty of indicator fluid and a precision 90 file on hand, because there’s LOTS of work to do.