ProMag Drum Magazine Features The ProMag Drum Magazine is purpose-built to fit the Springfield Armory Kuna 9mm pistol giving shooters a substantial capacity increase over the pistol s factory magazines for extended range sessions without frequent reloads. The proprietary DuPont Zytel-based polymer housing is engineered to resist cracking and wear from repeated loading and unloading standing up to the demands of high-volume shooting. An injection molded follower ensures consistent reliable feeding of rounds up through the stack helping reduce the chance of malfunctions during rapid strings of fire. This combination of durable materials and precise construction makes the drum a practical choice for shooters who want fewer interruptions between magazine changes. Backing the polymer housing is a magazine spring formed from heat treated stainless steel chosen specifically for its ability to maintain consistent tension across the full 50-round capacity over years of use. ProMag manufactures this magazine entirely in the USA reflecting a commitment to domestic production and consistent quality control from raw material to finished product. The drum s design keeps the footprint manageable for a 50-round capacity making it a practical range accessory rather than an unwieldy add-on. Shooters looking to maximize their Kuna s capacity for training or defensive preparedness will find this ProMag drum a dependable made in USA option available for sale at GrabAGun. Pro Mag Industries Drum Magazine Specifications Brand: ProMag Caliber: 9mm Capacity: 50 Rounds Material: DuPont Zytel Polymer Style: Drum Compatible Hosts: Springfield Kuna Color: Black Available At: GrabAGun