"Level 3" means that there are three separate retention features at work in this holster. First, the holster is form-fitted to the specific firearm and is adjustable for preferred tension. Second, the patented retention system positively engages the pistol's ejection port so that the firearm can not be drawn with the system engaged. Third, the Pivot Guard covers the slide to physically block the pistol from being drawn inadvertently, and is released by the strong hand thumb in a normal, standard drawing motion.
What's unique about this holster, apart from the Level 3 retention, is that it is designed to accommodate a full-size handgun with a light or light and laser combination attached to the accessory rail. It does this without adding a lot of bulk or unnecessary heft to the complete holster. The Epoch is designed to fit the Streamlight TLR-1 light, TLR2 light/laser combination or a SureFire X300 light attached to the pistol.
Models are available to fit the Glock 17, 22, and 31 as well as the Smith & Wesson M&P 9 and 40. MSRP starting at $107.99.