ARM Sonora (PO-152) is a Durango class oceanic patrol vessel in the Mexican Navy with a main 4 inch turret and a helicopter landing pad, currently primarily used to fight drug cartels. It is also armed with SA-18 Grouse missiles. Like other ships of this class, it was designed and built in Mexican dockyards, and is sometimes referred to as a compact frigate. It was named after the Mexican state of Sonora