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. Features: Multi fit omnivore holsters fit more than 150 styles of semi automatic handguns with an accessory rail Ergonomic thumb activated retention mechanism delivers instant firearm access Level 2 retention uses two features to hold handgunsecurely in place Free floating design locks onto rail attachment Height of thumb activated retention mechanism adjusts to fit your hand Holster locks onto rail attachment device (non LB) or frame of the light and doesn't wear on firearm's frame and finish