The RUST Holosight is a weapon attachment that allows players to right-click to zoom in when applied to a gun’s scope slot. This added visual range helps RUST players take slightly longer-range shots at further away targets.
Unlike standard scopes, the holosight uses a red holographic projection overlay which sticks up higher than normal scopes, often helping to compensate for other obstructing weapon attachments.
Using the holosight will slightly limit your peripheral vision, but the overall benefit of using this scope type goes a long way in reducing the aim cone and recoil.
Players may acquire a holosight through a number of mid-to-high tier crates, locked crates, or as drops from scientists. Players may also learn them directly via researching or investing considerable Scrap into the Tier 2 Workbench tech tree.