These are for the long receiver. These are fat barrel 7.65mm in 4” length. This is the type used with the 1902 American Eagle & cartridge counter commemorative. Will also fit the 1906 long receiver. Will also fit the M1900 with modification to the extractor cut. These are marked .30 Luger on top. Will also fit any Mauser Parabellum. New unblued or proofed. While the few last – never to be seen again.