ALS (Automatic Locking System) secures weapon once holstered; simple straight up draw once release is deactivated SLS (Self Locking System) Rotating Hood Level III Retention with optional Sentry installed A proprietary nylon blend that is completely non-abrasive to a firearm’s finish Raised stand-off surfaces in the interior of the holster to create air space around the weapon allowing dirt and moisture to quickly clear any contact with the firearm ASIN#: B088HJVSK3 Model number#: 7360-2835-491