![PROMAG FN 5.7X28MM CARBINE 55RD DRUM BLK PROMAG FN 5.7X28MM CARBINE 55RD DRUM BLK](https://cdn11.bigcommerce.com/s-c6aiidxwtg/images/stencil/300x300/products/33527/41369/BHPMDRMA80__04325.1738866411.jpg?c=1)
55-round drum magazine - Fits FN Five-seveN USG 5.7x28mm pistol - Magazine body constructed of a proprietary DuPont Zytel based polymer - Blue steel upper magazine tower - Injection molded magazine follower - Magazine spring formed from heat treated stainless steel - Made in USA