Arisaka Defense Offset Plate, Trijicon Rmrcc For 1.5'' To 1.8'' Scope Mount

The Arisaka Defense Offset Plate for Trijicon RMRcc is a precision-engineered mounting solution designed to co-witness a Trijicon RMRcc red dot sight alongside your rifle scope without the bulk and weight of traditional dual-optic setups. Built for AR15 shooters who want the speed and accuracy benefits of a backup red dot for close targets while keeping their primary scope ready for distance work, this modular plate pairs with Arisaka's offset mounting system to position your dot at a 35 or 45 degree angle—keeping your sight picture clear regardless of which optic you're using.

Machined from 6061-T6 aluminum and hard coat anodized per military specs, the offset plate is as durable as it is lightweight at just 1.9 oz for the complete assembly. The 35 degree position works best with slimmer scopes and tighter turret clusters, while the 45 degree angle gives you breathing room around larger objective bells and higher-magnification glass. Both the base and plate are reversible, so you can configure the rig for left or right side carry depending on your shooting style. The mounting base occupies three Picatinny slots on your AR's upper receiver with twin recoil lugs and a clamping screw for solid, repeatable zero.

This is a modular system—the Trijicon RMRcc plate and base can be purchased separately or together, so you can upgrade individual components as your optic collection grows without replacing the whole rig. That flexibility, combined with Arisaka's reputation for no-compromise machining and testing, makes this a go-to choice for hunters and shooters building serious offset-dot setups.

Key Features

• Designed specifically for Trijicon RMRcc red dot optics
• 35 and 45 degree offset positions—choose based on scope size and turret clearance
• Reversible plate and base for left or right side mounting
• Lightweight at 1.9 oz without optic
• 6061-T6 aluminum body with military-spec hard coat anodize finish
• Maintains lower 1/3 co-witness height when canted to use offset dot
• Modular design allows individual plate or base upgrade without full system replacement
• Includes Torx Plus bit drivers (IP20 and IP27) for tool-free installation

Specifications

Frequently Asked Questions

Will this plate work with other red dot optics?

This specific product is machined for the Trijicon RMRcc. Arisaka Defense makes compatible offset plates for other red dot models including the Trijicon RMR, Holosun 407C/507C/508T, Aimpoint Micro series, and others—check the full Arisaka lineup to match your optic.

What scope sizes does this offset plate work with?

This plate is designed for standard-height scope mounts in the 1.5" to 1.8" range. If your scope mount is taller (1.9" to 2.2"), you'll need Arisaka's tall-height version instead.

Can I switch between 35 and 45 degree angles?

Yes. The Arisaka offset system is modular—the base and optic plates are sold separately or as a combination, so you can experiment with different offset angles or upgrade components as needed.

Does this plate come with mounting hardware?

The base includes IP20 and IP27 Torx Plus bit drivers for installation and adjustment. The plate mounts to the base using the included hardware.