TMC 1911 Firing Pin 9mm/38 Super – Carbon Steel

Thunder Mountain Custom 1911 Firing Pin – 9mm / .38 Super – Carbon Steel

Upgrade your 1911 ignition system with the Thunder Mountain Custom 1911 Firing Pin, precision-built for 9mm and .38 Super pistols. This firing pin delivers reliable ignition, smooth operation, and exceptional service life—far beyond standard factory parts.

Because ignition consistency matters, Thunder Mountain Custom machines each firing pin to exact tolerances and finishes it for minimal friction and maximum durability.

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Precision Machined for Reliable Ignition

Thunder Mountain Custom machines each 1911 firing pin from 4140 carbon steel bar stock. Unlike cast or MIM parts, bar-stock steel provides superior strength and dimensional consistency.

After machining, each firing pin is heat treated to 45–59 HRC. As a result, the pin resists peening, bending, and wear, even after extensive use.

Most importantly, the firing pin maintains the proper weight for positive ignition with all common primer types. Therefore, you get dependable performance without risking light strikes.

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Ultra-Smooth Finish for Reduced Friction

To further improve reliability, every firing pin goes through an automatic micro-polishing process. This creates a mirror-smooth surface that reduces drag inside the firing pin channel.

Next, Thunder Mountain Custom applies a black oxide finish. This finish lowers friction even more while also protecting the steel from corrosion.

Because of this combination, the firing pin moves faster, resets smoothly, and contributes to consistent ignition shot after shot.

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Built for Long Service Life

Thanks to quality materials, proper heat treatment, and precision finishing, this firing pin lasts many times longer than standard firing pins. In fact, Thunder Mountain Custom backs it with a lifetime guarantee, giving you confidence in every build.

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Specifications

• Caliber: 9mm / .38 Super

• Material: 4140 Carbon Steel (Bar Stock)

• Hardness: 45–59 HRC

• Overall Length: 2.290″

• Tip Diameter: .066″

• Finish: Micro-polished with Black Oxide

• Warranty: Lifetime Guarantee

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Important 1911 Firing Pin Fitment Notes

Before ordering, always verify firing pin size. While caliber is a good guide, manufacturers vary.

• Typical .45 ACP firing pin tip: .095″–.096″

• Typical 9mm / .38 Super firing pin tip: .065″–.070″

⚠️ Important:
Some modern .45 ACP slides use a .070″ firing pin, not the traditional .090″ size. Therefore, always measure your existing firing pin or check the firing pin hole in the breech face to confirm the correct size before ordering.

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Why Choose Thunder Mountain Custom?

Thunder Mountain Custom focuses on precision, durability, and real-world performance. Every firing pin reflects careful machining, thoughtful heat treatment, and professional finishing.

If you want smooth operation, reliable ignition, and long-term durability in your 9mm or .38 Super 1911, this firing pin is a proven upgrade you can trust.