The 6354RDSO holster is designed for firearms with red dot sights. Its Automatic Locking System (ALS) secures the firearm. Unlike Safariland's RDS series, the RDSO has an open pocket that protects the optic and does not use a flip-up dust cover. This holsters has the QLS 19 Locking Fork installed. The QLS 19 fork can be used any mounting platform (leg shroud, belt loop, etc.) that has the QLS 22 Receiver Plate installed. Specifications for Safariland 6354RDSO ALS OWB Holster w/ QLS19 Fork: Manufacturer: Safariland Holster Type: Outside the Waistband Holster, Belt Holster Holster Material: SafariSeven Light/Laser Attachment: Olight PL-Pro Valkyrie, Burris FastFire, Vortex Viper, Leupold Deltapoint PRO, Trijicon RMR, SureFire X300V, Streamlight TLR-1HL, Streamlight TLR-1, SureFire X300U, SureFire X300, INFORCE APL Accessory Attachment System: QLS 19 Fork Application: Tactical Features of Safariland 6354RDSO ALS OWB Holster w/ QLS19 Fork ALS (Automatic Locking Systems) secures weapon once holstered; simple straight up draw once release is deactivated Open-top design without SLS for quick retrieval of weapon Includes QLS 19 Locking Fork ONLY For use with red dot optic-equipped weapons SafariLaminate thermal-molded construction protects handgun and sights Suede lined to protect handgun's finish Package Contents: Safariland 6354RDSO ALS OWB Holster w/ QLS19 Fork Which weapon models is Safariland 6354RDSO ALS OWB Holster w/ QLS19 Fork compatible with? Safariland 6354RDSO ALS OWB Holster w/ QLS19 Fork is compatible with Glock 47, Glock 19 MOS, SIG Sauer P320 RX Compact 9mm, STI International Staccato XC, STI International Staccato C