HOLOSUN 407 507K Adapter for FN509 (KPLT-FN509)

Features of HOLOSUN 407 507K Adapter for FN509 KPLT-FN509

• Designed to mount Holosun 407K and 507K series optics
• Specifically fitted for FN 509 pistols
• CNC-machined construction for precise fit and repeatability
• 6061 aircraft-grade aluminum for strength with controlled weight
• Type III hard-anodized finish for improved wear and corrosion resistance
• Black finish to match common slide and optic finishes
• Passive mechanical adapter with no power or electronics

Product Info for HOLOSUN 407 507K Adapter for FN509 KPLT-FN509

Holosun 407/507K Adapter for FN 509 is a pistol optic mounting adapter designed to allow Holosun 407K and 507K series micro red dots to be installed on FN 509 pistols. This adapter provides a secure, repeatable interface that bridges the footprint differences between the compact Holosun K-series optics and the FN 509 slide, enabling reliable slide-mounted optic use without permanent modification.

Produced by Holosun, this adapter addresses a common fitment challenge for shooters who want to run a smaller, lighter micro red dot on the FN 509 platform. The design focuses on durability and alignment consistency, making it suitable for pistols configured for duty use, range training, or everyday carry, where a compact optic and solid mounting solution are required.

GritrOutdoors is an authorized Holosun dealer