FN 509 Optic Plate – Adapter Plates for Red Dots | Mounts Plus
FN 509 Optic Plate – Red Dot Mounting Plates for FN 509, 510 & 545
Looking to mount a red dot optic on your FN 509, 510, or 545? Mounts Plus carries a complete line of C&H Precision FN 509 optic plates, designed for direct compatibility with factory-cut FN Tactical slides. These precision-machined adapter plates let you securely attach popular red dot sights like the Trijicon RMRcc, Holosun 507K, EPS, 509T, Aimpoint ACRO, and more — without milling or modifying your slide.
All plates feature a rugged MIL/LEO-grade profile with chamfered edges, black nitride or anodized finishes, and include appropriate screws and installation tools.
✅ Why Choose Our FN 509 Optic Plates?
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🔒 Secure Optic Mounting – No shift or play under recoil
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⚙️ Machined for Tactical Use – MIL/LEO strength and field reliability
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🧱 Built from 6061 or 4140 Steel – Anodized or black nitride coated
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🔩 Includes Hardware – All screws and alignment posts included
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🔄 Optic Swap Ready – Allows easy change of optics by plate
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🇺🇸 Made in the USA – Precision manufactured by C&H Precision
🛒 Top FN 509 Optic Adapter Plates
Product Title | Compatible Optics | Price |
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C&H Precision FN 509 to Trijicon RMRcc Optic Plate | RMRcc | $84.17 |
C&H Precision V4 MIL/LEO to Holosun 407K/507K / Vortex Defender | 507K, 407K, Defender CCW | $82.78 |
C&H V4 MIL/LEO to Holosun EPS / EPS Carry / SCS Carry | EPS, SCS Carry | $83.94 |
V4 MIL/LEO to Leupold DPP / EOTech EFLX | DeltaPoint Pro, EFLX | $87.00 |
Steel V4 MIL/LEO to Aimpoint ACRO / Steiner MPS | ACRO, MPS | $75.28 |
🔗 Each plate fits factory-cut FN 509 Tactical, FN 510, and FN 545 pistols.
🔍 Compatible FN Pistols
These optic plates are compatible with:
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✅ FN 509 Tactical
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✅ FN 509 Compact Tactical
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✅ FN 510 Tactical
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✅ FN 545 Tactical
⚠️ Not compatible with standard 509 slides without optic cut.
🧠 How to Choose the Right FN 509 Optic Plate
✔️ Running a Trijicon RMRcc?
→ Use the C&H RMRcc-specific plate with proper recoil posts.
✔️ Mounting a Holosun EPS or 509T?
→ Use the V4 MIL/LEO plates made specifically for K-series and T-series models.
✔️ Want maximum strength?
→ Opt for 4140 steel plates with black nitride finish for duty use.
📋 Installation Tips
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Use included screws and thread locker
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Torque to manufacturer specs (12–15 in-lbs typical)
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Test fit optic before final install
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Co-witness with suppressor-height sights if needed
🔧 Need tools? Shop mounting tools
📚 Frequently Asked Questions (FAQ)
Q: Will this fit a non-Tactical FN 509?
A: No. These plates are for factory-cut Tactical models only. Standard slides need to be milled.
Q: Can I use the same plate for Holosun EPS and 509T?
A: No. Each model requires a plate cut specifically for its optic footprint.
Q: What material are these made from?
A: Most are 6061 aluminum; select models are available in 4140 steel for extreme durability.
Q: Will I need new screws or special hardware?
A: No. All necessary screws, posts, and instructions are included with the plate.
🛒 Why Buy Your FN 509 Optic Plate from Mounts Plus?
✔️ Official C&H Precision Dealer
🚀 Fast USA Shipping
📦 In-Stock & Ready to Ship
📞 Firearm-Mounting Experts on Staff
🔁 30-Day Return Guarantee
Mounts Plus is trusted by law enforcement, military, and civilian shooters across the country for dependable mounting solutions.