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Aimpoint

Carbine Optic (Aco) - Aimpoint Carbine Optic (Aco)

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Ar-15 M4

Carbine style rifles

Ready Mount

Shoot directly out of the

Uses 30mm

Aluminum alloy sight tube

Includes Fixed-height

AR-15 backup iron sights

2 Moa

Red dot

$419.00
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SKU: 100016519

Overview

Built for AR-15 and M4 carbine-style rifles, this optic is aimed at shooters who want a ready-to-use red dot sight without extra setup. It comes ready to mount and shoot out of the box, with a fixed-height mount designed for absolute co-witness with AR-15 backup iron sights. The 2 MOA red dot and 30mm aluminum alloy sight tube give it a straightforward, no-frills setup for carbine use. For hunters and shooters who want a compact optic with room to tailor accessories through Aimpoint dealers, it offers a practical starting point.

Why Hunters Choose the Aimpoint

Ar-15 M4

Carbine style rifles

Ready Mount

Shoot directly out of the

Includes 30mm

Aluminum alloy sight tube

Fixed-height Mount

AR-15 backup iron sights

2 Moa

Red dot supports precise aiming

Key Features

  • Designed specifically for AR-15 and M4 carbine style rifles.
  • Ready to mount and shoot directly out of the box.
  • Uses a 30mm aluminum alloy sight tube.
  • Includes a fixed-height mount for absolute co-witness with AR-15 backup iron sights.
  • Features a 2 MOA red dot.
  • Compatible with branded Aimpoint accessories for customization.

Best Used For

  • AR-15 or M4 carbine owners wanting a ready-to-mount optic for immediate setup
  • Shooters who want absolute co-witness with AR-15 backup iron sights
  • Users seeking a 2 MOA red dot for general carbine use
  • Modern sporting rifle owners looking for an entry-level Aimpoint optic
  • Hunters and shooters who prefer a fixed-height mount on carbine-style rifles

Specifications

Accessoriesfull selection of branded accessories available from Aimpoint dealers
Co Witnessabsolute co-witness with AR-15 backup iron sights
Designed ForAR-15 and M4 carbine style rifles
Mount Typefixed height mount
Ready To Mountyes
Reticle2 MOA red dot
Sight Tube Diameter30mm
Sight Tube Materialaluminum alloy

Pros

  • Designed specifically for AR-15 and M4 carbine style rifles
  • Ready to mount and shoot directly out of the box
  • Includes a 30mm aluminum alloy sight tube
  • Fixed-height mount provides absolute co-witness with AR-15 backup iron sights
  • 2 MOA red dot supports precise aiming
  • Compatible with branded Aimpoint accessories for customization

Considerations & Trade-offs

  • Designed specifically for AR-15 and M4 carbine style rifles, so it is not a universal optic for every platform.
  • The fixed-height mount is set up for absolute co-witness with AR-15 backup iron sights, which may not match every shooter’s preferred sight height or setup.
  • It is ready to mount and shoot out of the box, but additional branded accessories are available separately if you want to tailor the optic to specific requirements.
  • The 2 MOA red dot offers a defined aiming point, but users who prefer a different dot size or reticle style will need to look elsewhere.

Suggested Comparisons

  • AR-15 and M4 carbine optics
  • Red dot sights
  • Fixed-height optic mounts
  • Backup iron sight co-witness setups

Suggested Accessories

  • Optic mount accessories
  • Backup iron sights
  • Lens cleaning supplies
  • Protective optic covers

Frequently Asked Questions

What rifles is the Aimpoint Carbine Optic designed for?

It is designed specifically for AR-15 and M4 carbine style rifles.

Does the ACO come ready to use out of the box?

Yes. The product description says it is ready to mount and shoot directly out of the box.

What type of sight picture does this optic use?

The description identifies it as a 2 MOA red dot sight.

Will this optic work with AR-15 backup iron sights?

The optic uses a fixed-height mount designed to provide absolute co-witness with AR-15 backup iron sights.

Can I customize the optic with accessories?

Yes. The description says a full selection of branded accessories is available from Aimpoint dealers to help users customize the sight to their requirements.