Alien Gear Holsters Rapid Force Polymer Level III OWB Belt Duty Holster Glock 19/19X/19 MOS/23 Gen 1-4/44/45/45 MOS Glock 17/17 MOS/22 Gen 1-4/47/47. The Level 3 Duty Holster is the quickest most secure and durable holster on the market all while...