Abstract: A holster for selectively locking a firearm. The holster includes a housing for carrying the firearm, a unit affixed to the holster and a pivotable catch positioned within the housing and the unit for locking and unlocking the firearm. The catch includes two arms extending from a central portion, both pivotable within the housing. The catch further includes a circular section extending from the central portion and selectively engageable with a rod. The rod is translatable within the unit for selective engagement with the catch by application of a magnetic force to the unit. The rod locks the catch into position for locking the firearm and is translatable away from the catch for unlocking the firearm and allowing the firearm to be removed from the holster.