The ACO (full name: Advanced Collimator Optics) is a non-magnifying red dot sight featured in ArmA 3.

Universally shared across all factions, the ACO comes with two separate variants; its NATO counterpart uses a red Bullseye reticle while the CSAT/AAF counterpart uses a green chevron-dot.

In addition, SMG variants exist for both counterparts and have reduced zeroing ranges for use on submachine guns and other short range weapons.

Trivia Edit

  • The ACO appears to be based on the "Railway" series of red dot sights manufactured by C-MORE Systems.


External Links Edit

See alsoEdit

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