This Unlocking Block Pin Set from GunWarehouseLLC.com is a practical, no-frills upgrade for your FN 509 or FNS-C pistol. Priced at just $15 for a three-pack, it’s built for shooters who want easier maintenance without wasting money on single-use parts. Ditch the factory solid pin that fights you every time you clean your gun — this set uses a coil pin design that slides in and out smoothly, saving you time and frustration at the bench.
Each pin is a direct replacement for the factory Front Unlocking Block Pin on your FN 509 or FNS-C. Installation is straightforward: insert from left to right, remove from right to left — same direction as the factory part. No special tools, no guesswork. Just pop the old solid pin out, slide this coil pin in, and you’re back to the range or the workbench.
Real benefits for the price-conscious shooter:
- Easier disassembly: The coil pin design means you can remove and reinstall it by hand or with basic punches. No more hammering out a stubborn solid pin just to clean your pistol or inspect the locking block.
- Tested for durability: These pins have been live-fire tested through thousands of rounds. They won’t bend, walk out, or fail under normal use. You get reliable retention shot after shot.
- Bulk-friendly three-pack: At $15, you get three pins. We recommend using each pin once and replacing it the next time it’s removed. That gives you three complete maintenance cycles — or a couple spares for the range bag. No need to buy singles every time you detail strip your gun.
- 100% USA-made materials: Built with high-quality domestic steel. No import junk that snaps or corrodes. These pins hold up to real use.
Specs and fitment: Designed specifically for the FN 509 series (including 509 Compact, 509 Tactical, 509 Midsize) and the FNS-C (Compact) pistols. Replaces the factory front unlocking block pin (solid type) with a coil-style pin for easier serviceability. Outer diameter and length match factory specs exactly — no fitting or modifications required. Works with standard trigger kits and aftermarket parts.
Why buy from GunWarehouseLLC.com: We stock what works and skip the fluff. This pin set is for shooters who want a simple, affordable way to speed up cleaning and inspection cycles on their FN
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