SKU: MGPMFNH-A1
The Promag FN 509 9mm Blue Steel magazine is a precision-engineered, made-in-USA magazine built for operators who demand reliability in critical situations. Designed specifically for the FN 509 platform, this magazine serves law enforcement, military, and civilian tactical shooters who require dependable ammunition storage and consistent feeding under duty or training conditions. This magazine has a capacity of 10 rounds, ensuring that users have ample ammunition for their needs.
ProMag's commitment to domestic manufacturing and rigorous quality control makes this an accessible alternative to OEM magazines without sacrificing performance or longevity. Each Promag FN 509 9mm Blue Steel magazine features precision-wound magazine springs constructed from heat-treated chrome silicon wire—the same metallurgy trusted in military and law enforcement applications for superior spring life and consistent pressure curves. The blue steel finish provides corrosion resistance and a professional appearance, while the magazine body is engineered to exact tolerances to ensure flawless feeding and reliable ejection.
Operators fielding the FN 509 as a duty, backup, or training sidearm will find the Promag FN 509 9mm Blue Steel magazine an economical way to build magazine redundancy without compromise. Law enforcement armories and military training units benefit from purchasing multiple magazines to ensure they are always prepared. This magazine is designed to meet the demands of tactical shooters, providing reliability and performance in various scenarios.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
