Disclosed here are shaving razor systems and methods including razor handles that dock with razor cartridges. In some embodiments, a handle is configured to dock with a razor cartridge using a single hook configured to mate with a cartridge tab. In some embodiments, a central pushrod is mounted with a spring into the handle, and is configured to exert a pushing force on the mounted cartridge. In some embodiments, to eject the cartridge, the single hook may be pushed to pivot to the side of the cartridge tab, and thereby release the cartridge by ejecting it with a spring loaded pushrod.