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 handgun securely in place Free-floating design locks onto rail attachment Height of thumb activated retention mechanism adjusts to fit your hand Made in the USA