Experience a new level of performance in your 1911 Commander with the ISMI 16 lb. flat wire recoil spring. This is the perfect all-around spring for shooters who want a noticeably smoother recoil impulse combined with flawless reliability. Engineered for an exceptionally long service life, this is a premium upgrade for any duty, carry, or range pistol.

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 custom builders and serious shooters.

• 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 16 lb. flat wire recoil spring is a versatile, all-around choice for a 1911 Commander, sitting just below the typical factory weight. This makes it the ideal choice for:

• Standard-Power Ammunition: Perfect for ensuring reliable cycling with standard velocity or "white box" range ammunition (e.g., 230gr FMJ), while providing a softer feel than an 18 lb. spring.
• General Purpose & Carry Use: An excellent "do-it-all" spring weight for shooters who use a variety of standard pressure ammunition and want a smoother-running pistol with proven reliability.
• Enhanced Shooting Feel: Many shooters find the combination of a 16 lb. spring and the linear compression of the flat wire design offers the best possible shooting experience for general use.

Technical Specifications