For the ultimate in recoil management for your custom 1911, look no further than the ISMI 24 lb. flat wire recoil spring. This is a specialized, extra-power spring engineered specifically for heavily compensated competition "race guns" and pistols converted to high-pressure calibers like .460 Rowland. The advanced flat wire design provides maximum resistance to control extreme slide velocities while offering a uniquely smooth compression feel.

The ISMI Advantage: Flat Wire Technology

ISMI's flat wire recoil springs offer a distinct performance advantage over traditional round wire springs, making them a favorite of top-tier competitors and custom gunsmiths.

• Smoother Recoil Impulse: The flat wire design compresses more linearly than round wire, resulting in a smoother, less "snappy" felt recoil that helps keep your sights on target during rapid fire.
• Exceptional Durability: Crafted from certified aerospace-spec chrome silicon alloy steel, these flat wire springs are rated for an incredible service life, resisting wear and taking a "set" far longer than any music wire spring.
• Made in the USA: Proudly manufactured in the United States by ISMI, the top choice for high-performance firearm springs in nearly every shooting discipline.

Application & Tuning Guide

A 22 lb. recoil spring is an extra-power spring, significantly heavier than the factory standard. It is designed for specific, high-pressure applications:

• Compensated Race Guns: While a compensator reduces felt recoil, it also slows the slide. For guns with highly efficient, multi-port compensators, an extra-power spring may be needed to ensure a positive and authoritative return-to-battery.
• High-Pressure Caliber Conversions: This is the correct spring weight for taming the powerful slide velocity of calibers like .460 Rowland or other wildcat cartridges that operate at much higher pressures than .45 ACP.
• Maximum Frame Protection: Using this extra-power spring provides the highest level of protection against slide-to-frame impact when using the most powerful ammunition available in the 1911 platform.

Technical Specifications