Thunder Mountain Custom Fiber – Bright, Durable Green Fiber for Firearm Sights – .060
Upgrade Your Sight Picture with Exceptional Brightness and Reliability
First and foremost, Thunder Mountain Custom Fiber delivers exceptional brightness, flexibility, and durability for firearm sights. Furthermore, unlike standard fiber replacements, this premium fiber ensures your sights remain clearly visible and precise under virtually all lighting conditions. Consequently, whether you are shooting in bright daylight or transitioning into low-light environments, this fiber stands out, helping you acquire targets faster and with greater accuracy.
Optical-Quality Core for Maximum Light Transmission
Brighter, More Vivid Sight Picture
The fiber is constructed with an optical-quality polymer core, which is doped with highly efficient fluorescent dyes. Additionally, a low-refractive-index fluoropolymer coating surrounds the core, allowing both visible and ultraviolet (UV) light to fluoresce. Therefore, the light transmitted through the fiber appears brighter and more vivid than conventional options—over 30% brighter, even on cloudy days. As a result, your sight picture is consistently easier to track, improving both speed and confidence during rapid-fire or tactical scenarios.
Durable and Flexible for Tough Environments
Maintains Performance Even Under Harsh Conditions
Not only is Thunder Mountain Custom Fiber bright, but it is also remarkably strong and flexible. Because of this durability, it withstands harsh environments, rough handling, and repeated adjustments without losing integrity. Moreover, even after repeated bending or exposure to solvents, the fiber retains its structure, ensuring consistent performance shot after shot. Consequently, your sights continue to function reliably over time, reducing the need for frequent replacements.
Precision for Competitive and Tactical Shooting
Optimized for Speed, Accuracy, and Custom Fit
Thanks to its superior optical properties and resilient construction, this fiber excels in competitive, tactical, and recreational shooting applications. Additionally, the bright green color promotes fast, intuitive sight alignment, while its flexibility allows for precise cutting and fitting for your specific sight setup. Therefore, you achieve professional-grade performance that enhances both speed and accuracy, ultimately giving you greater confidence on the range or in the field.
Key Features & Benefits
Small Component, Major Impact
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Bright, fluorescent green fiber – over 30% brighter than standard fibers
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UV-enhanced for maximum visibility in all lighting conditions
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Optical-quality polymer core for efficient light transmission
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Low-refractive-index fluoropolymer coating
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Flexible and strong for repeated use and rough handling
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Solvent-resistant for long-term durability
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Ideal for firearm sights in competitive, tactical, and recreational applications
Why Choose Thunder Mountain Custom Fiber?
Superior Materials for Dependable Sight Performance
Instead of paying a dollar per inch for low-quality replacement fibers, Thunder Mountain Custom Fiber delivers unmatched brightness, durability, and consistent performance. Moreover, its unique materials ensure your sights remain visible, precise, and reliable under virtually any condition. Consequently, upgrading your firearm sights with this premium fiber results in faster target acquisition, greater shooting confidence, and long-lasting reliability.
Available Color and Size
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Color: Green
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Diameter: .060
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