The Arisaka Defense Offset Plate for Holosun 407K & 507K (UPC: 601557940063) is engineered for 1.9″–2.2″ scope mounts. This modular mounting solution allows for a 35 or 45-degree offset position, bringing the red dot sight closer to slimmer scopes or providing additional clearance for larger scopes. this plate adapts to your setup.
Crafted from CNC machined 6061-T6 aluminum with a MIL-A-8625 Type III hard coat anodized finish, it ensures durability and reliability. This offset plate maintains the optic centered over the bore when the rifle is canted, offering a lower 1/3 co-witness height. The precision manufacturing and corrosion-resistant finish make it suitable for tactical, competition, and field use in demanding environments.
The plate includes new screws which are highly recommended over OEM screws. Ideal for AR15 rifles, this offset plate is perfect for range use, competition, or everyday carry, providing flexibility and precision. With the interchangeable plate system, you can easily swap configurations or upgrade to other Arisaka Defense optic plates as your needs evolve.




