An integrated, low-profile mounting interface for pistol optics

A precision-machined interface for direct optic mounting

A-CUT® is a precisely machined opening in the pistol slide that allows direct mounting of Aimpoint® COA® sight without adapter plates. This integrated system ensures a low, stable, and repeatable zero for unmatched performance.


Unmatched stability and speed

Unlike traditional mounts, the A-CUT design avoids the sheering effect that faces many interfaces today. A wedge-locking mechanism transfers lateral forces into the dovetail, reducing load on screws and mounting interfaces. This results in high durability and reliable zero retention under demanding conditions. Because the sight sits exceptionally low, A-CUT enables co-witnessing with factory iron sights, supporting fast, instinctive target acquisition and a more natural shooting experience. 

How to mount an Aimpoint® COA® sight on a pistol with A-CUT®  

  1. Position the COA sight
    Place the COA optic into the A-CUT interface on the slide. The interface secures the optic and prevents movement.
  2. Secure the COA sight
    Use the supplied screws and torque them to the recommended specification.
  3. Verify alignment
    Confirm that the sight is seated correctly and co-witnesses with the iron sights. The pistol is now ready to be zeroed.

Zero your COA

How to zero your COA® sight

  1. Set up your target
    Place a target at your preferred zeroing distance, commonly 25 yards for pistols.
  2. Fire a group
    Fire a three to five round group to observe point of impact relative to point of aim.
  3. Adjust the sight
    Use the elevation and windage adjustment screws with a T10 Torx tool. Make small adjustments as needed.
  4. Confirm zero
    Fire another group and repeat adjustments until point of impact matches point of aim.

New COA® / A-CUT® pistol partnerships coming soon

Aimpoint is expanding the availability of COA pistol optics and the A-CUT mounting interface through licensed OEM partnerships. Agreements have been signed with original equipment manufacturers, representing many of the world’s leading pistol brands, covering over eighty percent of the U.S. pistol market, and that is just the beginning. Throughout 2026, additional factory-integrated pistol and COA packages will be introduced.

A fully integrated, low-profile mounting interface for pistol optics

A precision-machined interface for direct optic mounting

A-CUT is a precisely machined opening in the pistol slide that allows direct mounting of Aimpoint™ COA™ sight without adapter plates. This integrated system ensures a low, stable, and repeatable zero for unmatched performance.

Unmatched stability and speed

Unlike traditional mounts, the A-CUT design avoids the sheering effect that faces many interfaces today. A wedge-locking mechanism transfers lateral forces into the dovetail, reducing load on screws and mounting interfaces. This results in high durability and reliable zero retention under demanding conditions. Because the sight sits exceptionally low, A-CUT enables co-witness with factory iron sights, supporting fast, instinctive target acquisition and a more natural shooting experience. 

How to mount an COA sight on a pistol with A-CUT

1. Position the COA sightPlace the COA optic into the A-CUT interface on the slide. The interface secures the optic and prevents movement. 2. Secure the COA sightUse the supplied screws and torque them to the recommended specification. 3. Verify alignmentConfirm that the sight is seated correctly and co-witnesses with the iron sights. The pistol is now ready to be zeroed. Download user manual > 

Zero your COA

1. Set up your targetPlace a target at your preferred zeroing distance, commonly 25 meters for pistols. 2. Fire a groupFire a three to five round group to observe point of impact relative to point of aim. 3. Adjust the sightUse the elevation and windage adjustment screws with a T10 Torx tool. Make small adjustments as needed.4. Confirm zeroFire another group and repeat adjustments until point of impact matches point of aim. Video about zeroing you COA with A-CUT >

New COA™ / A-CUT™ pistol partnerships coming soon

Aimpoint is expanding the availability of COA pistol optics and the A-CUT mounting interface through licensed OEM partnerships. Agreements have been signed with original equipment manufacturers, representing many of the world’s leading pistol brands, covering over eighty percent of the U.S. pistol market, and that is just the beginning. Throughout 2026, additional factory-integrated pistol and COA packages will be introduced.

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The COA®

The Aimpoint ® COA® maintains the ruggedness and reliability of the ACRO® series in a smaller, more compact form. This concealed carry optic features a fully enclosed emitter providing superior protection against debris, dust and other environmental elements - making it an excellent choice for professional, personal protection, and sport shooters alike.

A wide field of view with a narrow frame provides great situational awareness. The user will perceive a larger aperture due to the construction without an inner tube. The robust iron sight, which is part of the mounting solution, enables co-witnessing.

Overview

  1. Digital Intensity Push-buttons
  2. Elevation adjustment screw
  3. Windage adjustment screw
  4. Battery tray
  5. Screw for battery tray
  6. Battery (CR2032)
  7. Torx T10 tool
  8. O-ring
  9. Optical sufaces
  10. Battery tray tool