Emergency Shoot (ES) Holster
click to enlarge photos
The "ES" Emergency Shoot rig is for the person whose main weapon is a semiauto and backs it up with a revolver.
With this rig there still is a spare magazine available for a reload if needed, but if the auto suffers a mechanical malfunction that cannot be readily corrected, the availability of the dependable revolver is provided.
This idea originated from my experience as a parachutist who had a sophisticated main parachute that was backed up by a manually operated "emergency chute".
Base, $120 Holster Only
Magazine Carrier: $65