This disclosure describes a device that can removably restrain multiple magazines of bullets for a firearm. A preferred embodiment teaches a main body where the locking plate boss of a magazine can be locked and unlocked on either side of the main body; thereby allowing a user to “attach” two magazines of bullets to his/her firearm, and when one magazine is exhausted of bullets, merely pull that magazine out, flip it over, and insert the second magazine. Several means of locking and unlocking are contemplated, including having a removable drive shaft that can rotate a paddle, additionally providing a drive shaft with a wedge-shaped face, and additionally providing a shaft with a key built into it.