Built to take abuse - Meprolight MCO PRO 1x Reflex Red Dot Sight

If you want something that performs well in adverse environments, this is a very good choice. I shot this thing in freezing temps, in muddy woods, and after cleaning everything up zero was still dead‑on. The only think I’d change would be making the battery compartment easier to open without tools, but that’s more of a comfort issue than performance.