TMC Mainspring Housing Cap Pin – Stainless Steel

✅ 1911 Mainspring Housing Cap Pin – Stainless Steel

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

The 1911 Mainspring Housing Cap Pin – Stainless Steel restores secure retention and consistent function in your 1911 pistol’s mainspring housing assembly. Precision machined from high-grade stainless 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 reliability. This hardened stainless steel cap pin eliminates that issue by providing secure retention and stable performance.

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✅ Swiss CNC Precision Manufacturing

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

✅ Centerless grinding for precise diameter control
✅ Full heat treatment and hardening
✅ 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 soft factory pins, this hardened stainless 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 stainless steel
✅ Swiss CNC machined for exact tolerances
✅ Centerless ground for perfect fit
✅ Heat treated and hardened for durability
✅ Corrosion resistant stainless construction
✅ Prevents loosening and deformation
✅ Maintains proper 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: Stainless Steel
✅ Corrosion resistant
✅ Clean, professional appearance
✅ Matches stainless and two-tone 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 – Stainless Steel delivers:

✅ Precision fit
✅ Hardened stainless 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 and reliably.