

High Quality 11-pc Pin Set for 1911 Blue

ISMI 1911 Mainspring (Hammer) 17 lb

ISMI 1911 Mainspring (Hammer) 19 lb

ISMI 1911 Mainspring (Hammer) 22 lb

HD Standard Shelf Mag Catch Checkered Blue Standard Button (GI Length)

Restore the classic military feel and functionality of your WWI-era Colt 1911 Government model with this meticulously crafted Flat Smooth Mainspring Housing, complete with an authentic Lanyard Loop, in a traditional blued finish. Precision machined from solid bar stock carbon steel, this high-quality component from Evolution Gun Works (EGW) is designed to meet the specifications of original World War I G.I. pistols, offering a superior replacement for worn, damaged, or incorrect parts.
This mainspring housing features a historically accurate flat and smooth profile, now with the addition of an integral lanyard loop – a key characteristic of many WWI service pistols. This feature is essential for any period-correct restoration or custom build aiming for that authentic WWI 1911 military aesthetic. The durable blued finish not only provides excellent corrosion resistance but also complements the classic look of your firearm.
This mainspring housing is manufactured to precise WWI specifications. As such, it may sit slightly proud or below the frame on some pistols, requiring the frame to be blended to the mainspring housing for a perfect, seamless fit. This process, often performed by a qualified gunsmith, allows for a customized and exceptionally well-fitted result, eliminating gaps and ensuring a smooth transition between the frame and the mainspring housing.
Optimize your WWI 1911 restoration or build with this period-correct, high-quality flat smooth blued mainspring housing with lanyard loop. Ensure authenticity, proper military detail, and superior craftsmanship for your cherished firearm.