Holosun AACW1.4 Absolute Co-Witness Mount
The Holosun AACW1.4 Absolute Co-Witness Mount is compatible with Holosun 403 & 503 series. It provides an additional 1.4″ of height from the surface of the Picatinny rail to the center of the lens.

The 1.4-inch height measurement from the Picatinny rail to the optic’s centerline places the red dot at a comfortable and practical viewing height, helping to achieve a natural sight picture without excessive neck strain or awkward positioning, while still keeping the setup relatively low-profile.

Being compatible with the T1 footprint means the mount is specifically designed to match the mounting hole pattern and spacing used by Holosun AACW1.4 Absolute Co-Witness T1-style optics, ensuring a secure fit that minimizes movement and maintains zero even under repeated recoil or rough handling. Additionally, mounts like this are typically constructed from high-strength materials such as aircraft-grade aluminum or steel and often feature precise machining and robust clamping systems to prevent shifting and to maintain consistent alignment over time.

This type of mount is also usually easy to install and adjust, providing a stable base that can withstand the demands of regular use while keeping the optic properly positioned for both tactical and recreational shooting applications.