TMC Oversized Hammer/Sear Pin Set – Stainless Steel

TMC Oversized Hammer/Sear Pin Set – Stainless Steel

The TMC Oversized Hammer/Sear Pin Set gives 1911 builders a precise, effective way to tighten and stabilize critical fire‑control components. Instead of relying on undersized factory pins, this set allows you to fit the hammer and sear to the maximum allowable diameter. As a result, rotation becomes smoother, wear is minimized, and the trigger pull feels noticeably cleaner, crisper, and more consistent.

When pins fit loosely, parts inevitably shift under recoil. Consequently, friction increases, engagement surfaces wear faster, and trigger feel degrades over time. However, this oversized pin set directly solves that problem by creating stable, properly aligned pivot points. Therefore, the fire‑control system remains secure, and the trigger maintains a smooth, predictable break shot after shot.

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Built for Maximum Legal Diameter

Precision Oversize Dimensions for a Tighter Fit

To begin with, TMC machines each pin to the largest diameter allowed by the 1911 print while still remaining within safe, functional specifications. Because of this careful approach, you achieve the tightest possible fit without compromising reliability.

• Hammer pin: .157″

• Sear pin: .110″

• Barrel link pin: .154–.156″

As a result, these oversized dimensions improve both mechanical function and long‑term durability. In some cases, light reaming of the frame or components may be required to achieve proper fitment. Nevertheless, the payoff is a far more stable and precise fire‑control system.

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Precision Stainless Steel Construction

Strength, Smoothness, and Corrosion Resistance

From the start, TMC manufactures every pin from high‑quality stainless steel. After machining, each pin undergoes heat treatment to increase structural strength. Then, TMC precision‑grinds the surface to promote smooth, consistent rotation. Finally, each pin receives a corrosion‑resistant finish.

Because of this multi‑step process, the pins deliver consistent engagement, reduced friction, and dependable performance. Even under heavy use, they maintain proper fit and function, ensuring long‑term reliability.

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Why Oversized Pins Improve Trigger Performance

Stability Creates Consistency

Loose or worn pins allow unwanted flex and drag within the trigger system. Over time, that movement leads to inconsistent trigger breaks and accelerated wear on both the hammer and sear. Eventually, even a well‑executed trigger job can lose its crisp feel.

By contrast, oversized hammer and sear pins hold components in precise alignment. Consequently, pivot motion becomes smoother, wear is reduced, and the trigger pull remains stable and predictable. Most importantly, this pin set helps preserve the quality of the trigger work you invested in.

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Key Features and Benefits

• Oversized dimensions for precision fitting

• Stainless steel construction for durability

• Heat treated for added strength

• Precision ground for smooth rotation

• Reduced pivot and component wear

• Improved trigger consistency

• Long‑lasting, crisp trigger pull

• Corrosion‑resistant finish

• Designed for extended service life

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Compatibility

Fitment Overview

This pin set fits most 1911 pistols, including Government and Commander models, as well as many custom frames. In addition, it remains compatible with components from most major manufacturers.

That said, because these pins are oversized, some frames or parts may require reaming to achieve proper fitment.

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Ideal Applications

Where This Pin Set Excels

• High‑end trigger jobs

• Competition 1911 pistols

• Custom 1911 builds

• Replacement for worn factory pins

• Accuracy‑focused upgrades

• Long‑term durability improvements

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Summary

Ultimately, if you want the smoothest hammer and sear rotation possible, the TMC Oversized Hammer and Sear Pin Set delivers clear, measurable benefits. Thanks to its precision oversize fit, reduced wear, and corrosion‑resistant stainless steel construction, this set helps maintain a clean, consistent trigger break over time.

For builders who demand a trigger that stays crisp, stable, and competition‑ready, this pin set provides the correct, reliable solution.