Trijicon RM66 RMR Mount for 4x32 LED ACOG – AC32029

The Trijicon RM66 (AC32029) is a precision-engineered mount designed to affix an RMR or other compatible red dot sight to the top of a Trijicon 4x32 LED ACOG (TA02) riflescope housing. It positions the reflex optic forward on the ACOG body, improving sight acquisition and co-witness alignment. This mount is commonly used by competitive shooters and tactical users who want to pair magnified optics with a red dot sight on the same platform. 

Made from aircraft-grade aluminum, the RM66 is lightweight yet robust, providing a secure mounting interface that maintains zero under recoil.

Key Features

• Mounts RMR-style red dot optics to Trijicon 4x32 LED ACOG housing (TA02) 
• Forward placement for co-witness and intuitive sighting 
• Precision aircraft-grade aluminum construction 
• Lightweight (~0.6 oz / 17 g) 
• Compatible with RMR footprint optics 

Technical Specifications

• Brand: Trijicon
• Product Name: RM66 RMR Mount for 4x32 LED ACOG
• Model: RM66 / AC32029
• MPN: AC32029
• UPC: 719307609198
• Compatibility: Trijicon RMR or reflex optics with RMR footprint
• Intended Use: Mounting base for 4x32 LED ACOG (TA02 series)
• Material: Aircraft-grade aluminum
• Finish: Black matte
• Weight: ~0.6 oz (17 g) 
• Condition: New
• Country of Manufacture: USA (Trijicon standard)
• Warranty: Trijicon Limited Warranty

What’s Included

• Trijicon RM66 RMR Mount for 4x32 LED ACOG
• Mounting Screws
• Manufacturer Packaging