Abstract: A locking firearm holder that can be mounted in a vehicle; the holder employs a capture lever to lock or grip against the trigger guard of a firearm, such as a hand gun. The holder exhibits two stable states: a capture lever lock state or a capture lever unlock state. The method of switching between these two stable states is the same in either case: the user pushes against the firearm, along the axis of the firearm. This initial action by the user either locks the firearm in place, or unlocks the holder to allow the user to withdraw the firearm from the holder. The holder includes a withdrawal limiter to prevent premature re-locking as the firearm is being released. The holder includes a lock tab positioned near the locked firearm; the lock tab must be actuated to unlock the holder, thus preventing an accidental unlocking due solely to vibration.