Level I Retention(TM) Holster ALSA(R) (Automatic Locking System) secures weapon once holstered; simple straight up draw once release is deactivated Open-top design without SLS for quick retrieval of weapon Optional ALS Guard available for increasing level of security by one to a Level II Retention(TM) A proprietary nylon blend that is completely non-abrasive to a firearm's finish Raised stand-off surfaces in holster's interior creates air space around the weapon, allowing dirt and moisture to quickly clear any contact with the firearm Very high heat and low cold tolerances; structurally sound from 300Adeg F to -50Adeg F Can be submerged in water indefinitely and still maintain shape and function Matte finish designed to decrease reflection and can be maintained with a simple scouring pad