The Arisaka Aimpoint Micro Mount Mk2 (brand part no. OM2-MICRO-154) is a patented red dot mount built for the Aimpoint Micro T1 and T2, and it shares its footprint with the Aimpoint H1/H2, Aimpoint Comp M5/M5S, Sig Romeo 4 and 5, and Holosun HS503/515/530. This 1.54-inch version sets the optic at a lower 1/3 co-witness height, so standard AR-height iron sights show through the bottom third of the lens for a fast, layered backup sighting setup. Finished in black, it is a solid choice for duty and competition carbines running a Micro-footprint red dot alongside iron sights.

Key Specifications

• Built for the Aimpoint Micro T1 and T2 footprint and optics sharing that mounting pattern.
• Also compatible with the Aimpoint H1/H2, Comp M5/M5S, Sig Romeo 4/5, and Holosun HS503/515/530.
• Sets the optic at a 1.54-inch height for a lower 1/3 co-witness with AR-height iron sights.
• Uses a patented Mk2 mount design for a secure, repeatable zero.
• Classified as a red dot mount for direct Picatinny attachment.
• Finished in black to match most duty and competition builds.

Frequently Asked Questions

What co-witness does the 1.54-inch height give me? It provides a lower 1/3 co-witness, meaning your iron sights appear in the lower third of the optic’s lens.

Will this fit a Holosun HS503? Yes, it fits any red dot sharing the Aimpoint Micro footprint, including the Holosun HS503, HS515, and HS530.

Is this the same mount as the Arisaka Acro version? No, this Micro Mount Mk2 is cut for the Aimpoint Micro footprint; Arisaka sells a separate Acro Mount Mk2 for the Aimpoint Acro/Steiner MPS footprint.

Buy the Arisaka Aimpoint Micro Mount Mk2, 1.54-Inch, Black

Get a lower 1/3 co-witness red dot mount built for the Micro footprint from Arisaka Defense, part of our red dot mounts selection. Order it from our Lubbock, Texas gun shop for fast, insured shipping.