Port City Armory is a manufacturer known for its innovative approach to firearm accessories, particularly polymer magazines designed for AR-15 platforms. Founded by industry professionals with backgrounds in engineering and distribution, Port City Armory developed the FS30 magazine, which features a constant-curve internal geometry, an anti-tilt self-lubricating follower, and a 17-7 stainless steel spring for reliable performance. The company’s products are engineered for durability and ease of use, with materials chosen for chemical resistance and long-term reliability. Port City Armory’s magazines are available for sale through select online retailers and specialty firearm outlets, offering shooters a modern solution for their AR-15 needs. Shop Port City Armory to explore their lineup of high-performance magazines and accessories designed for today’s shooting sports enthusiasts.