Description

Precision-Machined Mounting Plate

The CH Optic Adapter Plate FN FNX-45 V4 Holosun 509T from Civil TAC is a precision-engineered solution designed to mount your 509T red dot directly to FN/FNX-45 V4 pistol slides without slide modification. Machined from high-grade aluminum or steel (depending on user preference), it indexes perfectly to the pistol’s slide recess, offering a seamless fit and reliable zero retention under full recoil.

Exacting Fit for FN/FNX Freedom

This adapter plate is purpose-built for the FN/FNX‑45 V4 series. Its CNC-machined profile aligns your Holosun 509T-compatible optic in perfect co-witness height with factory sights. The insert plate installs via the original slide screws and includes torque specs for rock-solid firmness—even under heavy slide cycling and range use. Civil TAC offers the CH Optic Adapter Plate FN FNX-45 V4 Holosun 509T for shooters who demand secure mounting and zero retention.

Durable Materials & Coating Options

Available in raw aluminum or steel construction, the plate offers options to match durability preferences. Hard anodized or nitride finishes resist wear, slide cycling marks, and sweat. The steel variants preserve slide weight and mimic factory optics cutouts for seamless aesthetics and function.

Zero-Retention & Longevity

Every plate is tested for return-to-zero consistency through 10,000+ cycles. The plate mounts with anti-rotation plates and set screws, ensuring the optic doesn’t shift—even under heavy use. Mount your sight, shoot confidently, and return to target without having to re-zero.

Ideal Use Cases

The CH Optic Adapter Plate FN FNX-45 V4 Holosun 509T is ideal for duty use, competition, or home defense upgrades.

• Duty-Grade Pistols: Bring red dot-ready capability to service pistols

• Competition Builds: Upgrade to dot precision for IDPA, USPSA, or Steel Challenges

• Home Defense: Eliminate sight transition time with fast dot acquisition

• Carry Pistols: Compact setup with robust mounting for daily carry

Installation & Use

Installation takes just minutes using the standard FN slide screws. Install your CH Optic Adapter Plate FN FNX-45 V4 Holosun 509T with standard tools in minutes using the included hardware. No slide milling needed—the plate reuses factory screw holes and aligns via slide recess. Fine-tune with torque wrenches to factory or Holosun-recommended specs and your pistol is ready. When swappable, optics can be moved between pistols while the plate stays secured, minimizing downtime.

Benefits Summary

• ✅ Exact fit for Holosun 509T steel-pattern optics

• ✅ No-slide-cut design preserves factory warranty and visual appearance

• ✅ Precision machining ensures return-to-zero accuracy

• ✅ Rugged finishes resist corrosion and wear

• ✅ Enables optics-ready functionality for duty, competition, or carry platforms

• ✅ Lightweight and slim for minimal added footprint

Ready your FN/FNX‑45 V4 for modern performance—mount your Holosun 509T optic on the CH Optic Adapter Plate and gain fast target acquisition, carry-ready reliability, and competition precision—all in one slip-on package from Civil TAC.

Additional information