Thunder Mountain Custom 1911 Slide Stop – 9mm | Blued | Tactical
Upgrade your 9mm 1911 with the Thunder Mountain Custom Tactical Slide Stop, designed for shooters who demand strength, precision, and smooth, snag-free operation. Unlike cast or metal-injection-molded parts, TMC CNC-machines every slide stop from a solid billet of steel. As a result, each component delivers tighter tolerances, improved fit, and superior durability under demanding use.
Precision CNC Machining for Reliable Function
Because Thunder Mountain Custom machines each slide stop from solid steel billet, the part maintains exceptional structural integrity. Consequently, it resists bending, cracking, and premature wear, even during high round counts or aggressive training.
Moreover, tight tolerances ensure consistent engagement with both the slide and frame, which improves lock-back reliability and overall cycling. Therefore, shooters gain repeatable performance whether training, competing, or carrying their pistol.
Tactical Smooth Paddle for Non-Snag Performance
The Tactical version removes serrations from the top of the paddle, creating a smooth, low-profile surface. As a result, the slide stop will not snag on clothing, holsters, or gear during movement or draw.
At the same time, the paddle retains positive control and confident engagement, allowing smooth, deliberate slide release without sacrificing function. Consequently, shooters experience improved comfort and faster manipulation in real-world conditions.
Optimized for 9mm 1911 Pistols
This slide stop features a precision pin diameter of .200 – 2.005 inches, allowing proper fit and reliable engagement in 9mm 1911 platforms. However, because individual pistols vary in tolerance, minor fitting may be required. When properly fitted, the slide stop delivers smooth cycling and consistent lock-back performance.
Durable Blued Steel Construction
The blued steel finish provides a classic appearance with proven durability, making it well suited for tactical, duty, and range pistols. Additionally, the finish protects the steel while maintaining clean engagement surfaces over time.
Built for Serious Shooters
Thunder Mountain Custom builds slide stops for shooters who value precision machining, dependable function, and long-term reliability. Therefore, this tactical slide stop is an excellent upgrade for those who demand performance without compromise.
Key Features and Specifications
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Caliber: 9mm
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Finish: Blued
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Material: CNC-machined steel billet
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Paddle: Tactical smooth, non-snag
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Pin Diameter: .200 – 2.005″
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Fitment: May require minor fitting
May require fitting
LIFETIME GUARANTEE





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