Thunder Mountain Custom 1911 Firing Pin – .45 ACP
Upgrade your 1911 with the Thunder Mountain Custom 1911 Firing Pin, designed to deliver precision, reliability, and long‑term performance. Thunder Mountain Custom machines each firing pin from premium 416R stainless steel bar stock, holds it to exact tolerances, and then heat‑treats it for added strength. As a result, you get a firing pin that moves smoothly, ignites reliably, and performs consistently shot after shot.
Precision Engineering for Reliable Ignition
Thunder Mountain Custom designs this firing pin with exactly the right weight to ensure positive ignition with standard .45 ACP primers. After machining, the company micro‑polishes each pin to a mirror finish.
Because this polished surface reduces friction inside the slide, the firing pin moves freely and consistently. Consequently, your 1911 cycles more smoothly, fires faster, and produces cleaner, more controlled double taps.
Balanced Weight and Correct Geometry
The firing pin features a .090‑inch tip, which delivers reliable primer strikes while maintaining proper timing. However, because individual pistols vary, minor fitting may be required depending on your firearm.
Features & Benefits
Built for Performance and Longevity
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Caliber: .45 ACP
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Material: 416R stainless steel
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Tip Diameter: .090″ (verify fit before installation)
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Length: Standard 1911 specification
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Finish: Micro‑polished for ultra‑smooth operation
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Durability: Heat‑treated for extended service life
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Performance: Faster lock time and improved trigger response
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Warranty: Lifetime
Because of this carefully engineered design, the firing pin reduces lock time, improves trigger feel, and maintains consistent ignition—even after thousands of rounds.
Fitment Notes and Installation Guidance
Most .45 ACP firing pins measure .095″–.096″ at the tip, although some modern pistols use a .070″ tip. Therefore, always measure your existing firing pin before ordering to confirm proper fit.
Additionally:
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This firing pin does not fit Springfield Armory 1911s
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Always install with a qualified gunsmith to ensure safety and correct function
Why Choose Thunder Mountain Custom?
Thunder Mountain Custom builds components with a clear focus on precision, performance, and reliability. By reducing friction and optimizing weight, this firing pin improves lock time and sharpens trigger response. As a result, shooters experience faster ignition, cleaner double taps, and more consistent performance.
Whether you are building a competition pistol, refining a high‑performance custom 1911, or upgrading a dedicated training gun, this firing pin delivers long‑lasting reliability and smooth operation. Ultimately, its micro‑polished finish, precise machining, and heat‑treated steel make it an essential upgrade for serious 1911 shooters.
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