ProductDescriptionUltimate Arms Gear Value Combo Kit Includes: Orpaz Defense Level 2 Roto Retention Tactical Thumb Release Holster For Heckler & Koch H&K HK USP Full Size + MOLLE Attachment Adapter + Ultimate Arms Gear Magazine Holder - Orpazâs thumb release holster is a level 2 retention holster that provides instant access to the weapon coupled with the added safety provided by the thumb release mechanism. The release is through a natural draw motion that is both quick & smooth. During - Its design was developed by IDF combat veterans to meet the demands of the toughest militaries and security services.Â - The Included MOLLE equipment Holster Attachment Adapter fits all Orpaz mag. pouches & holsters. It fits on MOLLE equipped gear such as vests, drop leg platforms, packs, cases, body armor and more. - The Unique Accordion Design Pouch Allows the Pouch to Flex In Order to Hold Most 9mm/.40 Caliber Single & .45 ACP Double Stack Magazines, Small Flashlights, Knives or Multi-Tools. Fits Belts From 1.5"" (38mm) to 2.25"" (58mm).