Apex Optic Mount for RMSc/507K - FN 509
The Apex Optic Mount is designed to securely mount the Shield Sights RMSc or Holosun 507K to the slide of the FN 509 model pistols with the FN Low Profile Optics Mounting System™. The Apex Optic Mount is machined from a billet of steel and finished in black oxide.
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
For the Shield RMSc Optic: Use the FN factory “514” screws
For the Holosun 507K Optic: Use the FN factory "511" screws
1 ea. Apex Optic Mount for the Shield Sights RMSc or Holosun 507K
How to Prep Your Slide to Mount an Optic
Products to Consider
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Please review and accept our Pre-Order Policy.
APEX Preorder Policy
Placing a preorder allows you to "get in line" and reserve your product: the quickest way to acquire an out of stock item.
Preorders are charged when the order is placed and shipped as soon as the product is available. Our regular return policy applies, with the 60 day return policy starting from shipment date. See our Policies page for full details here