Get the best bang for your buck with the ProMag® CZ Scorpion® 9mm 50-Round Drum Magazine. This high-capacity drum mag features a durable DuPont™ Zytel® polymer body with an over-molded, heat-treated carbon steel feed lip reinforcement for lasting performance and durability. Plus, a heat-treated chrome silicone wire internal spring eliminates binding, ensuring the injection-molded polymer follower operates flawlessly for reliable feeding. Made in USA.