This Apex Optic Mount is designed to securely mount the Holosun 509T to the FN 509 models featuring their FN Low Profile Optics Mounting System™. The Apex Optic Mount is machined from a billet of steel and black oxide finished.
This mount contains an integrated locking key, which mounts directly to the FN 509 slide without the need for an MRD Insert
- Specifically for use the with the FN Low Profile Optics Mounting System™
- Securely mount the Holosun 509T to the FN 509 slide
- Mounts directly to the factory slide, no need for an MRD Insert
For Use In These Guns
Fits all factory FN slides cut for the Proprietary FN Low-Profile Optics Mount System, including the FN 509, 510 and 545
What's Included
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1 ea. Apex Optic Mount – HS 509T to FN 509 slide
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2 ea. Optic Mount Screws with Thread Locker Pre-Applied
