Trijicon RMRcc Lower 1/3 Co-Witness Mount with Q-LOC Technology

The Trijicon RMRcc lower 1/3 co-witness mount with Q-LOC technology is a quick-release optic mount built for shooters running an RMRcc red dot on a Picatinny rail system. This mount positions your RMRcc above your iron sights—keeping them visible in the lower third of your sight picture as a backup—while giving you the advantage of a higher, clearer optical sight line. Built from 6061-T6 aluminum, it's engineered for both durability and minimal weight, so it won't slow down your rifle platform whether you're running a carbine, precision rifle, or patrol gun.

Setup is painless: the tool-less, one-handed mounting system gets your red dot on rails fast, and the Q-LOC technology ensures automatic retention and return-to-zero repeatability every time you remove and remount the optic. That's genuine peace of mind on the clock or in the field. The snag-resistant knob design keeps you from catching gear on a sharp edge, and precision-cut dimensions mean zero wobble and rock-solid lockup on any Mil-Spec Picatinny rail.

If you're building a rifle that balances speed and backup capability—a duty gun, a 3-gun rig, or a hunting rifle where iron sights matter—this lower 1/3 co-witness mount is a straightforward, proven way to maximize your optic's utility without compromise.

Key Features

• Quick-release with automatic return-to-zero retention
• Lower 1/3 co-witness height keeps iron sights visible for backup aiming
• Tool-less, one-handed mounting system
• Q-LOC technology ensures secure, repeatable optic lockup
• 6061-T6 aluminum construction, Mil-Spec drop-test rated
• Snag-resistant knob design
• Compatible with any Picatinny rail
• Low weight, low profile

Specifications

Frequently Asked Questions

Will this mount work on my rifle's Picatinny rail?

Yes. The RMRcc lower 1/3 co-witness mount is designed for any rifle platform with a standard Mil-Spec Picatinny rail. It will lock securely without any special adapters.

What does "lower 1/3 co-witness" mean?

Lower 1/3 co-witness means the RMRcc is mounted higher than your iron sights. Your iron sights will remain visible in the lower third of your optical sight picture, so you can use them as a backup aiming reference while maintaining a clear view through the red dot.

Do I need tools to mount this?

No. The RMRcc mount features a one-handed, tool-less mounting system. You can secure and remove your optic by hand without any additional equipment.

Will the optic hold zero if I remove and remount it?

Yes. The Q-LOC technology includes automatic retention and return-to-zero capability, so your RMRcc will return to the same point of impact when you remount it to the quick-release base.