The Arisaka Offset Optic Plate 4 for DPP/RMSc is the interchangeable optic plate that sets which red dot an Arisaka Offset Optic Mount carries (Arisaka part no. OOM-P4). Plate 4 covers the Leupold DeltaPoint Pro and RMSc footprint group. 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 Leupold DeltaPoint Pro, JPoint, Shield RMS and RMSc footprints plus the Swampfox Sentinel, SIG Romeo Zero, Romeo-X Compact and Pro, Crimson Trace CT RAD Micro and Micro Pro, EOTech EFLX and EFLX CE, Vortex Venom Enclosed and all Vortex Defender variants, 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.
• Plate 4 includes extra-long optic screws for the Leupold DeltaPoint Pro, which need a 2.5mm Allen key.

Frequently Asked Questions

Which red dots use plate 4? Plate 4 fits the Leupold DeltaPoint Pro, JPoint, Shield RMS and RMSc footprints, along with the Swampfox Sentinel, SIG Romeo Zero, Romeo-X Compact and Pro, Crimson Trace CT RAD Micro and Micro Pro, EOTech EFLX and EFLX CE, Vortex Venom Enclosed and all Vortex Defender variants.

What tool does the DeltaPoint Pro screw need? The Leupold DeltaPoint Pro screws that come with plate 4 are extra long and use a 2.5mm Allen key.

Can I tighten the optic screws fully? Arisaka says not to exceed 20 inch-pounds on the screws that attach the optic to the plate, and to follow your optic maker for the correct torque.

Buy the Arisaka Offset Optic Plate 4 for DPP/RMSc

Match the plate to your red dot and you can change optics later without replacing the base. Order this plate from our Lubbock, Texas gun shop for fast, direct shipping, and see our red dot mounts for the base and more.