ISMI – 15 Pound 1911 Government Recoil Spring

ISMI 15 lb 1911 Government Recoil Spring

Smooth, Consistent Cycling for Government‑Length 1911 Pistols

First and foremost, the ISMI 15 lb 1911 Government Recoil Spring keeps your pistol cycling smoothly and reliably. By controlling slide speed more precisely, it promotes clean feeding, consistent lockup, and predictable operation. As a result, your 1911 performs the same way every time—whether you’re training at the range, carrying daily, or competing.

Moreover, this 15 lb spring works exceptionally well with standard and lighter‑powered ammunition. Consequently, it helps maintain proper timing without excessive slide velocity or unnecessary frame stress.

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Precision Manufacturing Built to Aerospace Standards

To ensure consistent performance, ISMI manufactures every recoil spring in the USA using advanced CAD design and aerospace‑level production standards. Because of this precision, each spring delivers uniform tension and repeatable results. Therefore, you can trust your 1911 to run smoothly, round after round, without surprises.

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ISMI Recoil Springs – Strength You Can Rely On

Premium Chrome Silicon Wire Construction

ISMI uses Chrome Silicon wire to maximize durability and service life. In addition, each spring undergoes multiple strengthening processes:

• Heat treated to increase overall strength

• Shot peened to reduce surface stress and fatigue

• Fully stress relieved to prevent permanent set

Together, these steps stabilize spring tension and significantly reduce wear on both the slide and frame. As a result, your pistol cycles smoothly while maintaining long‑term reliability.

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Why Upgrade to an ISMI 15 lb Recoil Spring?

Over time, factory recoil springs lose tension. When that happens, slide speed becomes inconsistent, feeding reliability suffers, and frame battering can increase. Fortunately, ISMI recoil springs eliminate these problems.

Specifically, the 15 lb spring offers smoother slide movement and better timing, especially when shooting standard or reduced‑power loads. At the same time, it keeps recoil impulse predictable and controlled, improving overall shootability.

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Key Features and Benefits

Designed for Performance and Longevity

• 15 lb recoil spring for Government‑length 1911 pistols

• Optimized for standard and lower‑power ammunition

• Smooth, controlled slide cycling

• Improved feeding, lockup, and timing

• Chrome Silicon wire for extended service life

• Heat treated, shot peened, and stress relieved

• Made in the USA to aerospace standards

• Reduces long‑term wear on slide and frame

Because these features work together, the spring delivers consistent performance without sacrificing durability.

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Ideal Applications

Accordingly, this recoil spring works well for:

• Standard or lighter‑powered 1911 ammunition

• Duty, carry, and competition pistols

• Replacing worn or weakened recoil springs

• Pairing with extra‑power firing pin springs for optimal balance

• Gunsmith builds and serious shooter setups

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Maintenance and Warranty

To maintain peak performance, replace recoil springs every 5,000–10,000 rounds, depending on use and ammunition. Additionally, pairing this spring with the correct firing pin spring further enhances reliability.

For added confidence, ISMI backs every recoil spring with a 12‑month replacement warranty, even for normal wear.

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Material and Construction

• Chrome Silicon wire

• Heat treated for strength

• Shot peened to reduce fatigue

• Fully stress relieved for stable tension

• Made in the USA

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Summary

In conclusion, the ISMI 15 lb 1911 Government Recoil Spring delivers smooth cycling, consistent feeding, and dependable long‑term durability. Built to aerospace standards and engineered for precision, it keeps your 1911 reliable, controllable, and ready—whether for duty, carry, competition, or the range.