Unlocking Block Pin Set for FN 509 & FNS-C Pistols

Description

This Unlocking Block Pin Set is a direct replacement for the factory solid front unlocking block pin in your FN 509 and FNS-C pistols. Instead of fighting with a solid pin that can be stubborn to drive out, this set uses a precision coil pin that makes removal and installation significantly easier for routine cleaning, inspection, or maintenance. Each pin has been live-fire tested to withstand thousands of rounds without bending or walking out under normal use, giving you reliable, repeatable performance.

The set includes three pins because we recommend replacing the pin each time it is removed. This ensures you always have a fresh, properly tensioned pin ready to go, eliminating guesswork and potential fitment issues. The pins are designed to be installed and removed in the same direction as your factory pin: remove right to left, install left to right. This straightforward procedure means you can swap them out quickly with standard tools.

All pins are 100% made in the USA from high-quality materials, so you are getting a part that meets the same rigorous standards as your firearm. Whether you are performing a detailed clean after a range session or swapping parts for a trigger upgrade, this pin set saves you time and frustration. The coil-style pin provides consistent tension without the risk of galling or seizing that can occur with solid pins over time.

Key specifications and fitment:

• Direct replacement for the factory front unlocking block pin on FN 509 and FNS-C models
• Coil pin design for easier installation and removal compared to solid factory pins
• Test-fired to withstand thousands of rounds without bending or walking out
• Three pins per set – replace each time the pin is removed for best results
• Install left to right, remove right to left (same as factory pin direction)
• Manufactured in the USA from high-quality materials
• Compatible with standard trigger kits and aftermarket upgrades for FN 509 and FNS-C

This pin set is a simple, cost-effective upgrade for any FN 509 or FNS-C owner who values easy maintenance and reliable function. At just $15, it is an affordable addition to your spare parts kit or a smart replacement for a worn or damaged factory pin. No special fitting required – just drop in and go.