The 9mm Largo is a 9×23 case designed for Largo gun systems such as the Star, Astra, Destroyer Carbine, and also works in most Steyrs.

Starline is a family owned business and prides itself on producing the highest quality brass case available. With a production process focused on quality not quantity, Starline makes the finest brass and has for more than 40 years out of their state-of-the-art manufacturing facility in Sedalia, MO.