Blackhawk Omnivore Holster.

Multiple holsters for multiple handguns is no longer an issue. The Blackhawk® Omnivore™ is a multi-fit holster that accommodates more than 150 styles of semi-automatic handguns with and accessory rail.  The active retention mechanism locks onto our proprietary Rail Attachment Device, not the frame of the handgun.  A thumb release disengages the locking mechanism when drawing the handgun.