The Arisaka Offset Optic Plate 13 for Holosun 509T is the interchangeable optic plate that sets which red dot an Arisaka Offset Optic Mount carries (Arisaka part no. OOM-P13). Plate 13 fits the Holosun 509T and HE509-RD. It is a standard-height plate, for scope mounts in the 1.5- to 1.8-inch range, so it lines up the offset red dot with your primary optic. A complete offset mount needs a base and one plate, and the base is sold separately. Arisaka Defense offers the system so you can swap optics later by changing only the plate.

Key Specifications

• The plate fits the Holosun 509T and HE509-RD, so the footprint matches the red dot you plan to mount.
• It is a standard-height plate, for scope mounts in the 1.5- to 1.8-inch range, which keeps the offset red dot at a height that suits your main optic.
• It bolts to the Arisaka Offset Optic Mount base, which sets a 35 or 45 degree offset position when it is assembled.
• Assembled on the base, the complete mount weighs 1.9 ounces without an optic, a light add-on for the rifle.
• The mount system is machined from 7075-T651 and 6061-T651 aluminum with MIL-A-8625 Type III hard coat anodizing, a finish that resists wear.
• The plate includes two M4x10mm screws for attaching the optic.

Frequently Asked Questions

Does plate 13 fit the Holosun 509T? Yes. Plate 13 is the standard-height plate for the Holosun 509T and HE509-RD.

What if my scope sits in a tall mount? Arisaka offers a separate tall version of this plate, plate 14, for the 509T and HE509-RD, for scope mounts in the 1.9- to 2.2-inch range.

Does the plate include screws? Yes. Each separate plate includes two M4x10mm screws.

Buy the Arisaka Offset Optic Plate 13 for Holosun 509T

Plate 13 gives the Holosun 509T an offset home on a scoped rifle. Order it from our Lubbock, Texas gun shop for fast, direct shipping, and see our red dot mounts for bases and more.