"Gat sights" is a slang term used to describe the sights on a firearm. However, there are many synonyms that can be used when referring to these sights. Some common synonyms include gun sights, firearm sights, weapon sights, and shooting sights. Other synonyms that may be used include scope, crosshairs, reticle, and iron sights. The specific synonym used may depend on the type of firearm and the type of sight being referred to. Regardless of the synonym used, the importance of accurate and precise sights in shooting should not be underestimated.