Are FN 509 Tactical accessories compatible with FN 510 or 545?

Yes, most accessories including optic plates, triggers, and holsters are cross-compatible across the FN 509, 510, and 545 Tactical series.

Can I install a red dot without milling my FN 509 slide?

If your FN 509 is not factory optic-cut, you can use a dovetail red dot mount. If your slide is cut, use a C&H Precision adapter plate for direct mounting.

Is the Apex trigger kit easy to install on the FN 509?

Yes, the Apex Action Enhancement Kit is a drop-in upgrade for the FN 509. It’s recommended to have a gunsmith install it for best results, especially for duty or defense use.

FN 509 Accessories – Optic Plates, Triggers, Holsters

FN 509 Optic Plate

Fn 509 Sights

Fn 509 Red Dot Mount

**Apex Action Enhancement Kit for FN 509 Classic – Flat Trigger Upgrade** $166.67

**DPM Recoil Reduction System for FN 509 3.7" Compact & 4" Midsize** $110.13

**Apex Durable Striker Fn 509/503** $85.47

**Crucial Iwb Fn 509/510/545 Ambidextrous Blk** $59.15

**Crucial Owb Fn 509/510/545 Rh Bk** $59.15

**C&H Precision FN 509, 510, 545 V4 MIL/LEO Adapter Plate – Holosun 407K/507K, Vortex Defender** $82.78

**C&H Precision Optics Plate – FN 509, 510, 545 V4 MIL/LEO to Holosun EPS / EPS Carry / SCS Carry** $83.19

**C&H Precision FN 509®, 510®, 545® to Trijicon RMRcc Optic Adapter Plate** $84.17

**C&H Precision V4 MIL/LEO Adapter Plate for FN 509, 510, 545 – Leupold DeltaPoint Pro & EOTech EFLX** $87.00

**C&H Precision V4 MIL/LEO Steel Adapter Plate – FN 509, 510, 545 to Aimpoint ACRO** $75.28

**C&H Precision V4 MIL/LEO Steel Adapter Plate – FN 509, 510, 545 to Holosun 509T** $75.75

**DPM Recoil Reduction System for FN 509 LS EDGE** $110.13

FN 509 Accessories – Tactical Upgrades, Red Dot Mounts & More

Whether you carry it concealed, run it in competition, or deploy it for duty, the FN 509 is a proven striker-fired pistol. At Mounts Plus, we offer the most trusted and tested FN 509 accessories to upgrade your pistol’s performance, optics, recoil control, and concealability.

Our curated collection includes red dot optic mounts, Apex trigger kits, DPM recoil spring upgrades, IWB/OWB holsters, suppressor-height sights, and night sights — all compatible with FN 509 Tactical, LS EDGE, Compact, 510, and 545 variants.

🛒 Top FN 509 Accessories You Can Trust

Product Name	Type	Price
C&H Precision Optic Plate – FN 509 to RMRcc	Red Dot Adapter Plate	$84.17
Apex Action Enhancement Kit – FN 509 Flat Trigger	Trigger Upgrade	$166.67
DPM Recoil Reduction System – FN 509	Recoil Spring System	$110.13
Crucial Concealment IWB Holster – FN 509/510/545	Inside Waistband Holster	$59.15
AmeriGlo Night Sights for FN 509	Night Sights	$82.95
C&H Precision Plate – FN 509 to Holosun 507K / EPS Carry	Red Dot Plate	$83.78

🔗 All parts are selected for compatibility with optic-ready or standard FN 509 slides.

✅ Why Upgrade Your FN 509 with Mounts Plus

🔩 Optics-Ready Solutions – RMR, Holosun, DPP, and ACRO compatible mounting plates
🎯 Enhanced Accuracy & Trigger Feel – Flat face Apex kits improve reset and control
🔧 Better Recoil Management – DPM spring kits tame muzzle rise
🛡️ Everyday Carry Comfort – Slim-profile holsters for secure concealment
🌙 Low-Light Confidence – High-contrast tritium night sights available
🧩 Full Compatibility – Tactical, Compact, 510, 545 models all supported

🏷️ Explore Accessories by Category

🔭 Red Dot Mounting Plates

C&H Precision plates for RMRcc, Holosun 507K/509T, EPS, and Aimpoint ACRO
Built from 6061 aluminum or 4140 steel with recoil posts
For factory-cut FN 509, 510, 545 Tactical slides

🔫 Triggers & Fire Control Upgrades

Apex Action Enhancement Kits
Flat face aluminum triggers with crisp break and short reset

🧱 Recoil & Guide Rod Systems

DPM recoil reduction kits for smoother cycling
Includes multi-spring guide rod assemblies for tuning

👝 FN 509 Holsters

Inside Waistband (IWB) and Outside Waistband (OWB)
Adjustable retention, optics-compatible options available

🌒 Sights & Co-Witness Options

Night sights and suppressor-height sights from AmeriGlo
Tritium, fiber optic, and blacked-out rear configurations

🔍 Compatible FN 509 Variants

These accessories fit:

✅ FN 509 Tactical
✅ FN 509 Compact & Midsize
✅ FN 509 LS EDGE
✅ FN 510 Tactical
✅ FN 545 Tactical

📌 Always confirm slide cut and optic footprint when selecting red dot mounting plates.

📚 Frequently Asked Questions (FAQ)

Q: What are the most popular upgrades for the FN 509?
A: The top three are red dot mounting plates, flat face triggers, and upgraded recoil spring kits.

Q: Will FN 509 Tactical optic plates fit the FN 510 or 545?
A: Yes. Plates labeled for 509/510/545 are cross-compatible as long as the slide is optic-ready.

Q: Can I carry FN 509 Tactical with a red dot and suppressor sights?
A: Absolutely. Choose a low-profile IWB holster with optic cut and tall sight clearance.

Q: Is the Apex trigger drop-in ready?
A: Yes. It’s designed for user installation but professional fitting is recommended for duty use.

🛒 Why Buy FN 509 Accessories from Mounts Plus?

✔️ Official Dealer of Apex, C&H Precision, AmeriGlo & More
🚀 Fast U.S. Shipping
📦 Stocked & Ready to Ship
📞 Real Gear Support from Shooters
🔁 30-Day Return Guarantee

Trusted by shooters, LEOs, and instructors across the country. Gear up your FN 509 with confidence.

FN 509 Accessories – Optic Plates, Triggers, Holsters | Mounts Plus