Sig Sauer has contracted and developed a substantial line of optical sights to parallel their suppressor and firearms development.
Some, their Tango 6 series for example, are getting high marks and snagging contracts.
Others… Take it away, Sage Dynamics.
For myself. I’ve had a ROMEO 5 that has yet to quit on me with over a year and probably nearing 10,000 rounds of 9mm and 5.56 under it. Others reported far less stellar results on the more budget priced RDS. But durability is real. The CompM5 from Aimpoint is a vastly superior sight for a higher price, but superior it is.