ISMI – 18 Pound 1911 Government Recoil Spring – SS

ISMI 18 lb 1911 Government Recoil Spring – Stainless Steel

Smooth, Reliable Cycling for Government‑Length 1911 Pistols

First and foremost, the ISMI 18 lb 1911 Government Recoil Spring – Stainless Steel keeps your full‑size 1911 running smoothly, consistently, and reliably. By maintaining proper slide speed, it promotes clean feeding and controlled lockup. As a result, your pistol performs predictably from shot to shot.

Whether you rely on your 1911 for duty, carry, competition, or regular range use, this recoil spring ensures consistent operation with both standard‑pressure and full‑power ammunition. Consequently, your pistol feels stable, responsive, and dependable every time you pull the trigger.

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Precision Manufacturing Built to Aerospace Standards

To ensure repeatable performance, ISMI manufactures every recoil spring in the USA using advanced CAD design and aerospace‑level quality control. Because of this precise engineering, each spring delivers uniform strength and consistent dimensions.

Moreover, this strict manufacturing process allows the spring to maintain proper tension throughout its service life. Therefore, your 1911 continues to cycle smoothly and reliably, even after extended use.

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Stainless Steel Construction for Consistent Performance

Unlike traditional music wire springs, this ISMI recoil spring uses high‑quality stainless steel wire. As a result, it provides excellent durability while maintaining consistent spring tension.

In addition, stainless steel resists corrosion and environmental wear, making it well suited for duty pistols, carry guns, and high‑round‑count firearms. Consequently, the spring maintains stable performance under demanding conditions.

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Advanced Multi‑Stage Heat Treatment Process

ISMI reinforces every stainless steel recoil spring using a proven multi‑stage production process. Specifically:

• Heat treating increases overall strength and durability

• Shot peening reduces surface stress and improves fatigue resistance

• Full stress relief prevents permanent spring set over time

Together, these processes work in unison to keep spring tension consistent. At the same time, they reduce unnecessary wear on the slide and frame. As a result, your pistol cycles smoothly while critical components last longer.

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Why Upgrade to an ISMI 18 lb Recoil Spring?

Over time, factory recoil springs naturally weaken. When this happens, slide velocity becomes inconsistent, feeding reliability may suffer, and frame battering can increase. For that reason, upgrading your recoil spring is essential for maintaining proper pistol function.

Fortunately, the ISMI 18 lb recoil spring solves these issues. Because it controls slide movement more effectively, it improves feeding, enhances timing, and maintains predictable lockup. Even when shooting higher‑powered ammunition, the slide remains smooth and controlled.

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Key Features and Benefits

Performance and Durability You Can Rely On

• 18 lb recoil spring for Government‑length 1911 pistols

• Compatible with standard and full‑power ammunition

• Promotes smooth, reliable slide cycling

• Improves feeding, lockup, and overall timing

• Stainless steel wire for durability and corrosion resistance

• Heat treated, shot peened, and stress relieved

• Made in the USA to aerospace standards

• Reduces wear on slide and frame components

Because these features work together, this recoil spring delivers consistent performance for both casual shooters and serious professionals.

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Applications and Recommended Use

As a result of its balanced design, the ISMI 18 lb recoil spring performs well in a wide range of applications, including:

• Standard and high‑power 1911 ammunition

• Duty, carry, and competition pistols

• Replacement for worn or weakened recoil springs

• Gunsmith builds and performance upgrades

Additionally, pairing this recoil spring with an extra‑power firing pin spring helps maintain proper slide timing and enhances overall reliability.

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Maintenance and Warranty

To maintain optimal performance, replace recoil springs every 5,000–10,000 rounds, depending on ammunition and usage. By following this interval, you protect critical locking surfaces and maintain consistent cycling.

Furthermore, ISMI backs every recoil spring with a 12‑month replacement warranty, including coverage for normal wear. Therefore, you can install this spring with confidence.

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Material and Construction

• Stainless steel 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 18 lb 1911 Government Recoil Spring – Stainless Steel delivers smooth cycling, consistent feeding, and long‑term durability for Government‑length 1911 pistols. Moreover, because it is manufactured to aerospace standards in the USA, it keeps your 1911 reliable, accurate, and ready for duty, carry, competition, or the range.