An extended 30 round magazine for the Five-Seven pistol in 5.7x28mm. Features an injection molded housing and follower constructed of impact resistant, glass-filled nylon polymer for durability. The spring is precision wound from heat-treated Chrome-silicon wire for reliable feeding. The magazine has an overall length of 7.25", and includes a molded grip-sleeve to fill the space between the bottom of the grip-frame and the magazine base-plate. All components proudly made in the U.S.A. Features and Specifications: Manufacturer Number: FNH-A2 ProMag FN Five-Seven Magazine Caliber: 5.7x28mm Capacity: 30 Rounds Body Material: Polymer Spring Material: Chrome Silicon Wire Follower Material: Polymer Baseplate Material: Polymer Overall Length: 7.25" Made in the U.S.A. Finish: Black Fits: FNH Five-Seven Includes Molded Grip Sleeve