Arisaka Offset Plate for Holosun 509T, 1.5–1.8 inch

This offset plate is designed to adapt a Holosun 509T optic to scope-style mounts measuring 1.5" to 1.8". Each plate is CNC machined and finished for consistent fit and long-term service life. Standard Height Plate 13 fits the Holosun 509T (HE509-RD) footprint.

Key Specifications

• Material is 6061-T651 aluminum.
• Finish is MIL-A-8625 Type III hard coat anodized.
• Fit is specified for the Holosun 509T.
• Compatible mount size is 1.5" to 1.8" scope mounts.
• Height designation is Standard Height Plate 13.
• Color is Black.
• Manufacturing process is CNC machined.
• Product type is Mount.
• Subcategory is Optic Specific Mounts.
• Intended function is Offset mounting for pistol optics.

Built for reliability and low-profile integration, this plate provides a precise, repeatable interface between the Holosun 509T and scope-style mounts in the specified size range. Its durable aluminum construction and Type III hard coat anodize resist wear while maintaining a slim footprint, making it well suited for everyday carry setups, duty use, and range applications where a stable, optic-specific mounting solution is required.