Holosun 407/507K Adapter for FN509
Enhance Your FN509 with Holosun Optics
Upgrade your FN509 with precision and ease using the Holosun 407/507K Adapter. Designed to seamlessly integrate Holosun’s 407K and 507K optics with your FN509, this adapter provides a reliable and secure mount, allowing you to enhance your firearm’s accuracy and functionality.
