14+1 shot magazine for the RETAY XR model.
Original equipment from RETAY, features a sheet steel frame w/ removable spring load, which pushes the magazine follower, which in this case, is polymer. This magazine stack is a double row type and has witness holes for LOW, MEDIUM and HIGH capacity remaining. The polymer buttplate of course, is removable.

Just be sure to remove the rust from the exterior of the magazine, in order to avoid pitting / penetrative rust.

For lubrication, feel free to utilize BALLISTOL UNIVERSAL OIL SPRAY, both for lubricating the magazine follower as well as combating the formation of rust on the magazine surface.