TMC 1911 Mainspring Housing Cap Pin – Blued

✅ 1911 Mainspring Housing Cap Pin – Carbon Tool Steel – Blued

Our Mainspring Housing Cap Pin provides a Precision Fit • Heat Treated • Long Service Life

The 1911 Mainspring Housing Cap Pin – Blued restores secure retention and consistent function in your 1911 pistol’s mainspring housing assembly. Precision machined from high-grade carbon tool steel and fully heat treated, this replacement pin delivers exact fit, smooth installation, and long-term durability under heavy use.

Over time, factory cap pins can wear, loosen, or deform. When that happens, mainspring components may shift and affect ignition reliability. This hardened, blued steel cap pin corrects that issue by restoring secure retention and stable performance.

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✅ Swiss CNC Precision Manufacturing

Each 1911 mainspring housing cap pin begins as premium steel stock and is produced on high-end Swiss CNC screw machines for exact dimensional control. After machining, every pin receives:

✅ Centerless grinding for precise diameter
✅ Full heat treatment and hardening
✅ Black oxide blued finish for added wear resistance
✅ Final surface finishing for smooth installation

As a result, the pin installs cleanly, seats correctly, and performs reliably through thousands of firing cycles.

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✅ Built for Strength & Long-Term Reliability

Unlike softer factory pins, this hardened steel cap pin:

✅ Resists bending and deformation
✅ Prevents pin walk under recoil
✅ Maintains proper mainspring housing alignment
✅ Preserves consistent ignition performance
✅ Delivers extended service life

All pins meet or exceed manufacturer specifications for dependable performance in duty, carry, and competition pistols.

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✅ Key Features & Benefits

✅ Precision-fit 1911 mainspring housing cap pin
✅ Manufactured from high-grade steel
✅ Swiss CNC machined for exact tolerances
✅ Centerless ground for perfect fit
✅ Heat treated and hardened for durability
✅ Black oxide blued finish for wear protection
✅ Prevents loosening and deformation
✅ Maintains consistent spring alignment
✅ Ready to install

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✅ Compatibility

✅ Government and Commander 1911 pistols
✅ Single-stack 1911 frames
✅ Many custom 1911 builds
✅ Compatible with major manufacturers

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✅ Ideal Applications

✅ Replacement for worn mainspring housing cap pins
✅ Full 1911 rebuilds
✅ Duty and carry pistols
✅ Competition pistols
✅ Custom 1911 projects
✅ Preventive maintenance upgrades

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✅ Finish

Finish: Black Oxide (Blued)
✅ Enhanced corrosion resistance
✅ Increased surface wear protection
✅ Clean, professional appearance
✅ Matches blued and blacked-out pistols

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✅ Summary

If your 1911 needs restored retention and long-term reliability in the mainspring housing assembly, the 1911 Mainspring Housing Cap Pin – Blued delivers:

✅ Precision fit
✅ Hardened steel durability
✅ Secure component retention
✅ Consistent ignition performance
✅ Long service life

This small but critical pin plays an essential role in keeping your 1911 running smoothly, safely, and reliably.