Rebuild Kit for Mainspring Housing – Stainless

Rebuild Kit for 1911 Mainspring Housing – Stainless Steel

Restore Factory Performance with Tunable Reliability

First and foremost, the TMC Rebuild Kit for 1911 Mainspring Housing – Stainless Steel provides every internal component you need to install a new mainspring housing or fully rebuild worn internals. Consequently, your 1911 immediately regains proper spring tension, smooth trigger feel, and reliable ignition.

Moreover, whether you are refreshing a duty pistol, tuning a competition gun, or completing a custom build, this kit delivers consistent performance throughout. In addition, unlike generic kits, TMC allows you to select the hammer (mainspring) weight, so you can fine-tune your trigger pull, lock time, and primer ignition exactly as you need.

Complete Factory-Correct Rebuild Solution

Replace All Wear Components at Once

To begin with, this rebuild kit includes all critical internal components required for a full, no-compromise rebuild. Therefore, you avoid partial replacements and restore your pistol efficiently.

Kit Includes

• Selectable hammer spring

• Precision mainspring cap

• Mainspring cap pin

• Mainspring housing retaining pin

Because every wear component is replaced simultaneously, the kit restores proper energy transfer, smooth cycling, and consistent ignition. Consequently, your pistol performs like new immediately after installation.

Selectable Hammer Spring Weight

Tune Your 1911 for Any Application

Most rebuild kits limit you to a single spring weight. However, this TMC kit lets you choose the exact hammer spring weight. As a result, you gain full control over the performance of your 1911.

Specifically, selectable spring weight allows you to fine-tune:

• Trigger feel

• Slide velocity

• Lock time

• Primer ignition reliability

Therefore, whether you are building a competition pistol, maintaining a duty gun, or optimizing a defensive carry firearm, this kit gives you complete flexibility. Moreover, you can adjust performance without needing multiple rebuild kits or trial-and-error components.

Swiss CNC Precision Manufacturing

Built for Accuracy and Long-Term Durability

Equally important, each component in this stainless steel rebuild kit starts as high-grade steel and is manufactured on advanced Swiss CNC screw machines. Consequently, every part achieves exact dimensions and precise fit.

After machining, each component undergoes:

• Centerless grinding for accurate fit

• Full heat treatment and hardening

• Final surface finishing for smooth operation

Because of this precise process, the parts install cleanly, resist deformation, and perform reliably even under high round counts. Therefore, you get long-lasting performance without additional modifications or adjustments.

Corrosion-Resistant Stainless Steel Construction

Long-Lasting Performance in Any Environment

Additionally, this version features stainless steel components, making it the ideal choice for stainless or two-tone pistols. In addition, stainless steel construction protects your firearm from corrosion and wear over time.

The key benefits include:

• Superior corrosion resistance

• Excellent wear protection

• Clean, professional appearance

• Extended service life

As a result, this rebuild kit maintains both reliable function and a polished look even in harsh or demanding conditions. Furthermore, it reduces long-term maintenance needs and ensures consistent performance.

Key Features and Benefits

Professional-Grade Performance Upgrade

• Complete 1911 mainspring housing rebuild kit

• Includes cap, cap pin, and retaining pin

• Selectable hammer spring weight

• Swiss CNC precision machining

• Heat treated and hardened for strength

• Stainless steel construction for corrosion resistance

• Restores smooth trigger feel and reliable ignition

• Ideal for repairs, upgrades, and custom builds

• Ready to install immediately

Because it contains all critical components, this kit saves time, reduces errors, and improves overall reliability. In addition, it ensures your pistol performs as designed after every rebuild.

Compatibility

Designed for Standard Single-Stack 1911 Pistols

This stainless steel rebuild kit works with:

• Most single-stack 1911 pistols

• Government, Commander, and Officer-size frames

• Factory and aftermarket mainspring housings

• Major 1911 manufacturers

However, it is not compatible with 2011 or double-stack frames. Therefore, confirm your pistol size before ordering to ensure proper fit and performance.

Ideal Applications

One Kit, Multiple Uses

Because of its complete component set and tunable performance, this kit is perfect for:

• Mainspring housing replacement

• Full internal rebuilds

• Trigger tuning projects

• Competition pistols

• Duty and defensive carry pistols

• Preventive maintenance upgrades

• Custom 1911 builds

Consequently, you can rely on this kit for nearly any maintenance or performance upgrade task. Moreover, having all components in one kit reduces shop downtime and simplifies workflow.

Why Replace Your 1911 Mainspring Housing Internals?

Prevent Reliability Issues Before They Happen

Over time, worn mainspring components often lead to:

• Light primer strikes

• Inconsistent trigger pull

• Sluggish lock time

• Cycling and feeding problems

• Accelerated wear on ignition parts

Therefore, installing a complete rebuild kit restores factory-correct energy transfer, consistent trigger performance, and reliable primer ignition. Furthermore, it helps prevent costly failures before they occur, saving both time and money in the long run.

Summary

Factory Reliability with Custom-Tuned Control

In conclusion, the TMC Rebuild Kit for 1911 Mainspring Housing – Stainless Steel delivers a complete internal rebuild solution with tunable performance. Because it includes all critical components, precision machining, and corrosion-resistant stainless steel construction, this kit restores smooth trigger feel, reliable ignition, and long-term durability.

Ultimately, this rebuild kit is ideal for shooters who demand factory-new reliability with the flexibility to fine-tune their 1911 for speed, performance, or defensive readiness. Moreover, it provides a professional-grade solution that saves time, reduces errors, and ensures consistent results every time.