Patriot Ordnance Factory is a Phoenix, Arizona-based manufacturer specializing in the design and production of AR-style rifles for law enforcement, military, and civilian use. Founded in 2002 by aerospace engineer Frank DeSomma, the company pioneered the first gas-piston-operated systems for AR-style platforms in the United States, addressing issues such as carbon fouling and timing challenges common to traditional gas impingement designs. Patriot Ordnance Factory’s rifles incorporate advanced features like regulated short-stroke gas piston systems, corrosion-resistant nitride-treated barrels, and proprietary coatings that reduce maintenance requirements. With a strong focus on engineering innovation and reliability, Patriot Ordnance Factory continues to set industry standards for performance-driven firearm solutions. Shop Patriot Ordnance Factory to experience their commitment to precision and durability.