Multi-fit: Omnivore Holsters fit more than 150 styles of semi-automatic handguns with an accessory rail; Active Retention Mechanism: Instinctive thumb-activated retention mechanism delivers instant firearm access; Level 2 Retention: Uses two features to hold handgun securely in place; Free-Floating Design: Doesn't wear firearms frame or finish; 3-Position Adjustable Release: Height of thumb-activated retention mechanism adjusts to fit your hand