Thunder Mountain Custom 1911 Firing Pin – 9mm / .38 Super
Upgrade your 1911 with a 1911 firing pin engineered for accuracy, durability, and consistent ignition. Designed specifically for 9mm and .38 Super, the Thunder Mountain Custom 1911 Auto Firing Pin delivers smooth operation, correct weight, and long service life. Consequently, serious shooters gain dependable performance whether they compete, train, or spend long days at the range.
Precision Machined for Reliable Ignition
Thunder Mountain Custom machines each firing pin from 416 stainless steel bar stock and holds it to exact tolerances. Because of this precision, the firing pin fits correctly and ignites primers consistently across a wide range of ammunition.
At the same time, Thunder Mountain Custom carefully balances the firing pin’s weight. As a result, it strikes primers with authority while avoiding unnecessary mass that could slow lock time. Therefore, shooters benefit from both reliability and performance.
Heat Treated for Extended Service Life
After machining, Thunder Mountain Custom heat treats every firing pin to 43–45 HRC. This step significantly increases strength and resistance to wear. Consequently, the firing pin maintains its dimensions and function far longer than standard factory parts, even under frequent or high‑round‑count use.
Mirror‑Polished for Ultra‑Smooth Operation
Next, each firing pin undergoes an automatic micro‑polishing process. This creates a mirror‑smooth surface that dramatically reduces friction inside the firing pin channel.
Because friction decreases, the firing pin moves freely, resists fouling, and cycles consistently. Therefore, ignition remains smooth and predictable shot after shot.
Why Choose a Thunder Mountain Custom Firing Pin?
This firing pin enhances reliability through several complementary improvements. First, the stainless steel construction resists corrosion. Next, the polished surface minimizes drag. Finally, the correct weight ensures positive ignition without sacrificing speed.
Together, these features make this firing pin a smart upgrade for competition pistols, duty guns, and dedicated range firearms alike.
Specifications
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Caliber: 9mm / .38 Super
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Material: 416 stainless steel bar stock
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Hardness: 43–45 HRC
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Overall Length: 2.290″
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Tip Diameter: .066″
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Finish: Mirror polished
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Warranty: Lifetime guarantee
Important Fitment Notes
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Average 1911 .45 ACP firing pin tip diameter: .095″–.096″
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Average 1911 9mm / .38 Super firing pin tip diameter: .065″–.070″
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Some modern .45 ACP slides use a smaller .070″ firing pin tip
Therefore, if you are unsure which firing pin your pistol requires, measure the breech face hole or your existing firing pin before ordering. Proper sizing ensures safe operation and consistent ignition.
Built to Last and Guaranteed for Life
Ultimately, Thunder Mountain Custom stands behind every firing pin with a lifetime guarantee. When you choose this firing pin, you gain precision machining, smooth performance, and long‑term reliability—backed by craftsmanship you can trust.
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