BLACKHAWK Omnivore L2 Multi-Fit Holster, Fits More Than 150 Styles of Semi-Automatic Handguns with Accessory Rail, Thumb Activated Active Retention Mechanism, Level 2 Retention, Right Hand, Black 419000BBR Multiple holsters for multiple handguns is no longer an issue. The Blackhawk(R) Omnivore(TM) is a multi-fit holster that accommodates more than 150 styles of semi-automatic handguns with an accessory rail. The active retention mechanism locks onto Blackhawk's proprietary Rail Attachment Device, not the frame of the handgun. A thumb release disengages the locking mechanism when drawing the handgun.