TMC Government 1911 Hammer Spring – Mainspring 19 Pounds

TMC Government 1911 Hammer Spring / Mainspring – 19 Pounds

Lighter Trigger Feel Without Sacrificing Reliability

The TMC 19‑Pound Government 1911 Hammer Spring, also known as a mainspring, is designed to give your 1911 a noticeably lighter and smoother trigger pull. Compared to the common factory 23‑pound spring, this reduced‑weight option lowers resistance during the trigger press. As a result, the trigger break feels cleaner, more controlled, and easier to manage during both slow fire and rapid strings.

At the same time, this spring maintains dependable hammer force for reliable ignition. Therefore, you gain improved shootability without compromising function.

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Balanced Trigger Pull and Hammer Control

A Smarter Way to Tune Trigger Feel

Hammer springs directly influence trigger weight and overall trigger character. When spring weight drops, trigger pull typically becomes lighter and smoother. However, if the spring is too light, ignition reliability can suffer. For that reason, the 19‑pound rating strikes an ideal balance.

Because this spring reduces tension without going too far, it delivers a lighter pull while still driving the hammer with consistent force. Consequently, shooters experience a smoother break, better trigger control, and improved accuracy potential. Additionally, TMC offers multiple spring weights, which allows further tuning based on ammo choice, firing pin setup, and personal preference.

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Durable American‑Made Construction

Built to Last Through Thousands of Cycles

TMC manufactures each hammer spring from high‑quality, American‑made spring steel. Because of this material choice, the spring resists fatigue, deformation, and loss of tension over time. Even after thousands of compression cycles, it maintains its intended spring rate.

Furthermore, the spring fits securely inside the mainspring housing. This precise fit ensures predictable hammer movement and consistent performance from shot to shot. As a result, your 1911 remains reliable during extended range sessions, competition use, or daily carry.

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Performance Benefits in Real‑World Use

Noticeable Improvements Where It Matters Most

By installing a 19‑pound hammer spring, shooters typically notice:

• A lighter, smoother trigger pull

• Improved trigger control during slow and rapid fire

• Reduced effort during the trigger press

• Better consistency shot to shot

• Maintained ignition reliability with quality ammunition

Because trigger feel plays such a large role in shootability, even a small change in spring weight can deliver meaningful improvements in confidence and performance.

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Installation and Fitment

Straightforward Upgrade for Most 1911 Builds

Replacing the hammer spring requires removal and reinstallation of the mainspring housing. While the process is straightforward, basic gunsmithing knowledge and proper tools are recommended. Once installed, the improvement in trigger feel is immediate and easy to notice.

This spring fits Government‑size 1911 pistols and works well in factory pistols, custom builds, and quality clones. Additionally, it integrates seamlessly with standard mainspring housings and internal components.

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Key Features and Specifications

Designed for Practical 1911 Tuning

• 19‑pound hammer spring for Government‑size 1911 pistols

• Reduces trigger pull weight for a smoother, more responsive break

• Maintains reliable hammer force and ignition

• Manufactured from durable, American‑made spring steel

• Resists fatigue and spring set over long service life

• Fits securely inside standard mainspring housings

• Suitable for stock pistols, custom builds, and upgrades

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Summary

A Simple Upgrade With Meaningful Results

In conclusion, the TMC 19‑Pound Government 1911 Hammer Spring offers an excellent way to refine trigger feel without sacrificing reliability. Because it balances reduced tension with consistent hammer force, it delivers a smoother, lighter trigger that enhances control and confidence.

Ultimately, whether you are tuning a competition pistol, refreshing worn components, or improving a carry or range gun, this hammer spring provides a practical, effective upgrade for any Government‑size 1911.