This 50-round magazine for FNH PS-90/P-90 firearms is built for durability and reliable performance. Constructed from clear polycarbonate, with black glass-reinforced polymer for the follower, base plate, and feeding mechanism, it withstands rugged use. The heat-treated chrome-silicon wire spring ensures dependable feeding and extended service life, ideal for demanding conditions. Product Features Impact Resistant Poly-Carbonate Construction Injection Molded Follower Heat Treated Music Wire Spring Made in USA Product Specifications Manufacturer: Promag Model: PS90 Caliber: 5.7x28mm Magazine Capacity: 50 Rounds