The FN Five-seveN pistol, known for its unique 5.7x28mm cartridge and impressive accuracy, has gained popularity among both law enforcement and civilian shooters. However, its small size and unique design present challenges when it comes to mounting optics. This guide will delve into the intricacies of FN Five-seveN optic mounts, exploring available options, considerations for choosing the right mount, and installation tips for optimal performance.
Understanding the Challenges of Mounting Optics on the FN Five-seveN
The FN Five-seveN's slide doesn't offer traditional mounting rails like many modern pistols. This necessitates the use of specialized optic mounts that either utilize the existing rear sight dovetail or require modifications to the pistol itself. This lack of standard mounting solutions makes choosing the right optic mount crucial for a successful and reliable setup.
Types of FN Five-seveN Optic Mounts
Several types of mounts cater to the FN Five-seveN's unique design:
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Dovetail Mounts: These mounts replace the rear sight, utilizing the existing dovetail to secure the optic. This is generally the most popular and least invasive method. They are often readily available and relatively easy to install. However, ensure the mount is specifically designed for the FN Five-seveN as dimensions can vary slightly.
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Adapter Plates: Some manufacturers offer adapter plates that bridge the gap between the optic's footprint and the FN Five-seveN's slide. These can be more versatile, allowing compatibility with a wider range of optics. However, they often add extra bulk and weight to the pistol.
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Custom Milling: For those seeking a more permanent solution, custom milling of the slide to accommodate a direct-mount optic is an option. This requires professional gunsmithing and is the most expensive and time-consuming method. It also voids any manufacturer warranty.
Factors to Consider When Choosing an FN Five-seveN Optic Mount
Selecting the right mount is crucial for both functionality and safety. Consider these factors:
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Optic Compatibility: Ensure the mount is compatible with your chosen optic. Different optics have different footprints and mounting systems.
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Material and Construction: Opt for mounts made from high-quality materials like aluminum or steel for durability and reliability. A robust mount is essential to withstand the recoil of the 5.7x28mm cartridge.
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Ease of Installation: Some mounts are easier to install than others. Consider your mechanical aptitude and the tools you have available.
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Weight and Bulk: Adding an optic and mount will increase the weight and overall size of the pistol. Consider how this will affect your handling and concealability.
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Co-Witnessing: If you prefer to maintain iron sights, consider whether the mount allows for co-witnessing – the ability to see both the optic and iron sights simultaneously.
Installation Tips and Considerations
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Professional Installation: For those unfamiliar with firearm modifications, professional installation is highly recommended. Incorrect installation can lead to malfunction and potential injury.
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Proper Torque: Over-tightening can damage the mount or the pistol's slide. Use the manufacturer's recommended torque specifications.
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Zeroing the Optic: After installation, it's essential to zero your optic to ensure accurate shot placement.
Conclusion
Choosing the right optic mount for your FN Five-seveN is a critical decision. By carefully considering the various mount types, factors, and installation tips discussed above, you can ensure a safe, reliable, and accurate setup tailored to your specific needs and shooting style. Remember to prioritize safety and seek professional assistance if needed. Enjoy your enhanced shooting experience with your FN Five-seveN and your newly installed optic!
