ISMI – 12.5 Pound 1911 Government Recoil Spring

ISMI 12.5 lb 1911 Government Recoil Spring

Optimized Recoil Control for Light Target and Competition Loads

The ISMI 12.5 lb 1911 Government Recoil Spring provides an ideal solution for shooters running light target ammunition, competition loads, or reduced‑power setups. When standard recoil springs prove too stiff, this lighter spring allows the slide to cycle smoothly and consistently. As a result, your pistol maintains reliable function even with softer‑shooting ammunition.

Because light loads generate less recoil energy, a standard recoil spring may fail to drive the slide fully rearward. Consequently, feeding, ejection, and slide lock can become inconsistent. This 12.5 lb recoil spring solves that issue by ensuring full slide travel, clean feeding, and consistent ejection. Therefore, your 1911 continues to operate reliably shot after shot.

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Built for Consistency and Long Service Life

This recoil spring is manufactured from premium chrome silicon wire. Compared to conventional spring materials, chrome silicon offers superior resistance to heat, fatigue, and deformation. As a result, the spring maintains its rate longer and delivers consistent performance over extended round counts.

In addition, ISMI’s precise manufacturing standards ensure smooth compression and predictable recoil behavior, which is critical for competition and precision shooting.

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Why Choose an ISMI 12.5 lb Recoil Spring?

A 12.5 lb recoil spring is an excellent choice when your goal is optimized performance with light ammunition. Specifically, it helps deliver:

• Smooth, reliable cycling with reduced‑power loads

• Consistent feeding and positive ejection

• Faster follow‑up shots due to reduced recoil impulse

• Easier slide manipulation

• Predictable operation in target and competition pistols

Because the spring rate is lighter, the slide moves more freely. As a result, short‑stroking is reduced and overall control improves. At the same time, felt recoil softens, which supports better accuracy and faster target reacquisition.

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Key Features & Benefits

• 12.5 lb recoil spring designed for light‑load 1911 setups

• Engineered for Government‑length (5″) 1911 pistols

• Ideal for competition and target shooting

• Promotes smooth cycling with low‑energy ammunition

• Reduces effort required to rack the slide

• Manufactured from premium chrome silicon wire

• Resists heat, fatigue, and spring set

• Delivers long‑lasting, consistent performance

• Backed by trusted ISMI quality

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Compatibility

• Fits Government‑length 1911 pistols

• Works with factory and aftermarket guide rods

• Best suited for light target and competition loads

Note: Not recommended for full‑power or +P ammunition.

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Recommended Use

For optimal results, use this recoil spring with light or reduced‑power ammunition. Additionally, pairing it with an extra‑power firing pin spring is recommended to maintain proper ignition safety. For continued reliability, replace recoil springs every 5,000 to 10,000 rounds, or sooner under heavy use.

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Summary

The ISMI 12.5 lb 1911 Government Recoil Spring offers a reliable and effective way to tune your pistol for light ammunition. By combining a reduced spring rate with durable chrome silicon construction, it delivers smooth cycling, consistent feeding, and easier operation. As a result, it is an excellent choice for competition shooters and range enthusiasts seeking dependable performance with reduced‑power loads.