Product Description The ProMag DRMA106 is a high-capacity 50-round drum magazine designed for 9mm platforms that accept H&K MP5/PTR9-style magazines. Built with durable DuPont Zytel polymer construction and reinforced at key wear points, this drum is engineered for reliable feeding and extended range sessions with fewer reloads. Internal components include a heat-treated stainless steel spring and an injection-molded polymer follower to support consistent operation. Product Highlights 50-round 9mm drum magazine for extended shooting sessions Compatible with H&K MP5 and PTR9 variants (MP5-style fit) DuPont Zytel polymer body for durability with reduced weight Heat-treated stainless steel internal spring for dependable feeding Reinforced feed-lip area with over-molded heat-treated carbon steel for added strength Specs Brand: ProMag Manufacturer Part Number: DRMA106 UPC: 708279016431 Type: Drum magazine Caliber: 9mm Capacity: 50 rounds Compatibility/Fit: H&K MP5 / PTR9 variants (MP5-style) Color: Black Body Material: DuPont Zytel polymer Spring: Heat-treated stainless steel (internal) Follower: Injection-molded polymer Feed Lip Reinforcement: Over-molded heat-treated carbon steel reinforcement Country of Manufacture: USA Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&&';;s manufacturer.