Ruger | Ruger-57 Magazine | 5.7 x 28mm | Black

Ruger's factory Ruger‑57 magazine is built from heat‑treated steel with a corrosion‑resistant black oxide finish, backed by a high‑tensile steel spring and polymer follower for the consistent cartridge alignment 5.7x28mm's small, fast‑moving round actually needs to feed reliably. Precision‑machined witness holes give a genuine at‑a‑glance round count, and a removable polymer baseplate keeps the profile flush and snag‑free for carry while still popping off easily for cleaning. Available in 10- and 20‑round factory capacities -⁠- the magazine built to the exact tolerances the Ruger‑57's action was designed around.