TMC Mainspring Housing Cap – Stainless Steel

✅ 1911 / 2011 Main Spring Cap – Stainless Steel

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

The 1911 / 2011 Main Spring Cap – Stainless Steel is a precision-machined replacement component designed to restore reliable ignition, smooth cycling, and long-term durability to your pistol. This hardened stainless steel mainspring cap delivers consistent spring compression, proper fitment, and dependable performance under heavy use.

Factory mainspring caps often wear, deform, or lose consistency over time. When that happens, reliability and lockup suffer. This precision replacement cap solves that problem with exact tolerances, superior materials, and professional-grade heat treatment.

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✅ Swiss CNC Precision Manufacturing

This 1911 / 2011 mainspring cap is produced from high-grade stainless steel on advanced Swiss CNC screw machines. After machining, each cap receives:

• Centerless grinding for exact diameter control

• Full heat treatment and hardening for strength

• Final surface finishing for smooth, friction-free contact

The result is a mainspring cap that installs easily, holds tight tolerances, and delivers flawless performance through thousands of cycles.

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✅ Built for Strength & Long-Term Reliability

Unlike soft factory caps, this hardened stainless steel mainspring cap:

• Resists deformation under heavy spring pressure

• Maintains consistent spring compression

• Prevents binding and uneven wear

• Preserves reliable hammer strike and cycling

• Delivers long service life in high-round-count pistols

All parts meet or exceed manufacturer specifications for dependable duty, carry, and competition use.

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⭐ Key Features & Benefits

✅ Precision-fit 1911 / 2011 mainspring cap
✅ Manufactured from high-grade stainless steel
✅ Swiss CNC machined for accuracy
✅ Centerless ground for perfect fit
✅ Heat treated & hardened for durability
✅ Maintains consistent mainspring tension
✅ Improves ignition reliability
✅ Long service life under heavy use
✅ Ready to install

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✅ Compatibility

• Most 1911 pistols

• Most 2011 pistols

• Government, Commander, and many custom frames

• Compatible with major manufacturers

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✅ Ideal Applications

• Replacement for worn mainspring caps

• Competition pistols

• Duty and carry pistols

• Custom 1911 and 2011 builds

• 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 you want to restore reliable ignition, consistent spring tension, and long-term durability, the 1911 / 2011 Main Spring Cap – Stainless Steel delivers:

• Precision fit

• Hardened stainless strength

• Reliable spring compression

• Smooth cycling

• Long service life

This is a critical internal upgrade for any 1911 or 2011 built to run hard and run reliably.