The Geissele Absolute Co-Witness Micro Red Dot Mount, Black (Geissele part no. 05-401B) is a low-profile mount from Geissele Automatics built for Micro-pattern red dot sights, sized to sets the dot exactly in line with the iron sights for a full absolute co-witness with the rifle’s flip-up iron sights. It’s a common choice for a duty or competition AR that runs a compact red dot alongside backup irons, giving a consistent, repeatable relationship between the two sighting systems.

Key Specifications

• Built for Micro-pattern red dot sights.
• Sets an absolute co-witness height relative to flip-up iron sights.
• Finished in Black to match common AR-platform finishes.

Frequently Asked Questions

What’s the difference between Absolute and Lower Third co-witness? Absolute co-witness lines the dot up exactly with the iron sights; Lower Third co-witness sets the dot lower, in the bottom third of the sight window, keeping the top of the window clear.

What red dots fit this mount? Red dots built to the industry-standard Micro footprint, a pattern shared across several major optic brands.

Buy the Geissele Absolute Co-Witness Micro Red Dot Mount, Black

Order the Geissele Absolute Co-Witness Micro Red Dot Mount, Black from our Lubbock, Texas gun shop as soon as it’s ready to ship—a consistent absolute-height mount for a Micro-pattern red dot. Browse more scope accessories and scope parts from our Lubbock, Texas shop.