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The ACO (full name: Advanced Collimator Optics) is a collimator sight used by several BLUFOR, REDFOR and INDFOR factions in ArmA 3.

Design[]

The ACO features either a red-tinted bullseye or green chevron-dot reticle. Both variants have their zeroing fixed to a range of 200 m by default and cannot be adjusted.[CfgWp 3][CfgWp 4][CfgWp 5][CfgWp 6]

Dedicated SMG variants also exist for both counterparts but have reduced zeroing ranges (100 m) and are meant for use on submachine guns and other short-ranged firearms.[CfgWp 7][CfgWp 8][CfgWp 9][CfgWp 10] Like with regular ACOs, the SMG variants also cannot have their zeroing adjusted.

ACOs do not have any inertia penalties when mounted onto a weapon. This applies to both the standard[CfgWp 11][CfgWp 12] and SMG variants.[CfgWp 13][CfgWp 14]

Variants[]

Arma3-optic-aco-00
Uses a red-tinted bullseye reticle. This variant has a fixed zeroing of 200 m.[CfgWp 3][CfgWp 4]

Arma3-optic-aco-01
Uses a red star reticle. This variant has a fixed zeroing of 100 m.[CfgWp 7][CfgWp 8]

Arma3-optic-aco-02
Functionally identical to the standard red variant but has a green chevron-dot reticle instead. This variant has a fixed zeroing of 200 m.[CfgWp 5][CfgWp 6]

Arma3-optic-aco-03
Functionally identical to the red SMG variant but has a green T-Dot reticle instead. This variant has a fixed zeroing of 100 m.[CfgWp 9][CfgWp 10]

Camouflage[]

  • Black: Matte black finish.


Reaction Forces Creator DLC only

NOTE: The following camouflage schemes will only be available if the third party-developed Reaction Forces Creator DLC is activated.

  • Desert:* Desert camouflage pattern.
  • Wood:* Lush camouflage pattern.

(*) Not available to SMG variants.


Trivia[]

  • The ACO appears to be based on the "Railway" series of red dot sights manufactured by C-MORE Systems.
  • It is the most ubiquitous optic in ArmA 3, with almost every military faction and non-state actor group utilising either the standard or SMG variants.
  • In the Alpha, only the baseline ACOs were available. The dedicated SMG variants were later added in the Beta (as part of Game Update 0.74).[1]
  • After the Marksmen DLC's release, all ACOs were upgraded to make use of the then-new collimator tunnelling effect[2] for their reticles (as part of Game Update 1.42).[3]
  • A unique Defunct variant exists exclusively for use in the First Contact campaign which features an ACO with its reticle disabled. Functionally, it remains identical to regular ACO (Red) sights. However, it cannot be equipped outside of the campaign since it requires the Contact module of the expansion to be loaded.[4]

Gallery[]

Config/script references[]

CfgWeapons[]

  1. CfgWeapons >> optic_Aco >> ItemInfo >> mass
  2. CfgWeapons >> optic_Aco_smg >> ItemInfo >> mass
  3. 3.0 3.1 CfgWeapons >> optic_Aco >> ItemInfo >> OpticsModes >> ACO >> distanceZoomMin
  4. 4.0 4.1 CfgWeapons >> optic_Aco >> ItemInfo >> OpticsModes >> ACO >> distanceZoomMax
  5. 5.0 5.1 CfgWeapons >> optic_ACO_grn >> ItemInfo >> OpticsModes >> ACO >> distanceZoomMin
  6. 6.0 6.1 CfgWeapons >> optic_ACO_grn >> ItemInfo >> OpticsModes >> ACO >> distanceZoomMax
  7. 7.0 7.1 CfgWeapons >> optic_Aco_smg >> ItemInfo >> OpticsModes >> ACO >> distanceZoomMin
  8. 8.0 8.1 CfgWeapons >> optic_Aco_smg >> ItemInfo >> OpticsModes >> ACO >> distanceZoomMax
  9. 9.0 9.1 CfgWeapons >> optic_ACO_grn_smg >> ItemInfo >> OpticsModes >> ACO >> distanceZoomMin
  10. 10.0 10.1 CfgWeapons >> optic_ACO_grn_smg >> ItemInfo >> OpticsModes >> ACO >> distanceZoomMax
  11. CfgWeapons >> optic_Aco >> inertia >> "0"
  12. CfgWeapons >> optic_ACO_grn >> inertia >> "0"
  13. CfgWeapons >> optic_Aco_smg >> inertia >> "0"
  14. CfgWeapons >> optic_ACO_grn_smg >> inertia >> "0"

References[]

  1. van 't Land, J.J. 2013, SPOTREP #00008, Arma 3, viewed 15 October 2023, <https://dev.arma3.com/post/spotrep-00008>.
  2. van 't Land, J.J. 2015, SITREP #00098, Arma 3, viewed 15 October 2023, <https://dev.arma3.com/post/sitrep-00098>.
  3. van 't Land, J.J. 2015, SPOTREP #00040, Arma 3, viewed 15 October 2023, <https://dev.arma3.com/post/spotrep-00040>.
  4. ARMA 3: Contact 2019 [Video Game], Bohemia Interactive a.s., ACO (Defunct), \a3\weapons_f_contact\acc\acco_aco_emp_f.p3d

External links[]

See also[]

Optical sights of comparable role and configuration[]

Weapon attachments of ArmA 3
Collimators ACO (SMG) • MRDYorris J2
Holographic sights Mk17 Holosight (SMG)
Riflescopes ARCO (AK) • ERCOMRCOPMSRCO
Sniper scopes AMSDMS (Kir, Old) • KahliaLRPSMOS
Thermal/Night vision TWS (MG) • NightstalkerNVS
Aiming devices IR Laser Pointer
Illumination Flashlight
Muzzle SIMCOM AdapterSound Suppressor (5.56 mm, 5.7 mm, 5.8 mm, 6.5 mm, Stealth, 7.62 mm, .338, 9 mm, 9.3 mm, .45 ACP)
Weapon mounts Bipod
(Parenthesis) denote variants.
Marksmen DLC | Apex DLC | Contact DLC
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