Holosun ARO-CORE Red Dot Sight (2 MOA)

The Holosun ARO-CORE is a budget-friendly upgrade to the popular 403/503 series, offering a larger 22mm window and improved compatibility with modern magnifiers. It includes a new 1.63″ lower-1/3 co-witness mount for a comfortable, heads-up shooting position and keeps things simple with a clean 2 MOA dot.

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Why It Works Well

• Affordable option without giving up reliability

• Larger 22mm window for a clearer sight picture

• Pairs perfectly with Holosun magnifiers

• 1.63″ mount gives a natural, upright shooting angle

• Simple 2 MOA dot for quick, uncluttered aiming

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Gunsmith’s Notes

The ARO-CORE is a great choice for shooters who want solid performance on a tighter budget. The improved window makes a noticeable difference, and the height mount feels good in practical use. A dependable red dot for rifles, PCCs, or training setups.

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Specs

• Objective Window: 22mm

• Reticle: 2 MOA Dot

• Mount: 1.63″ lower-1/3 co-witness pedestal mount

• Compatibility: Optimized for Holosun magnifiers