ProMag magazines are made in the USA and backed by a lifetime guarantee against manufacturer's defects. Magazine springs are precision wound using heat-treated chrome silicon wire and each and every step of the assembly process is checked and double checked in order to maintain the same consistent level of quality.
Specifications
| Features | 50-Round Drum 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; Made in the U.S.A. |
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