ProMag FN 509, 9MM, 10 Round, Blue Steel

Engineered to deliver smooth, jam-free feeding performance and unmatched reliability in harsh, fast-action environments, the FN® 509™ 9mm 10-Round Magazine is a factory OEM, California-compliant 10-round magazine, built around a durable, heat-treated stainless steel with a polymer floor plate for long-lasting durability and superior corrosion resistance for dependable performance in any environment. The steel wire internal spring and anti-tilt polymer follower ensure flawless feeding, while the removable floor plate offers quick disassembly when maintenance and cleaning are required.

Features: 

• 10-round magazine
• Fits FN® 509 9mm pistol
• Magazine body constructed of heat treated steel with black oxide finish
• Injection molded magazine follower
• Magazine spring formed from heat treated chrome silicone wire