The 6354DO features the Automatic Locking System (ALS) and is specifically made for use with red dot optic-equipped weapons.
Safariland 6354DO ALS Optic Tactical Holster for Glock G34 MOS (Multicam/ Right Hand) - eHobbyAsia
6354RDSO - ALS Holster w/ QLS19 Fork
Safariland 6354DO ALS Optic Tactical Holster for Glock 19 - Milspec Retail
Safariland - 911supply
SAFARILAND 6354DO ALS OPTIC TACTICAL HOLSTER - SDTAC
Safariland 6354DO - ALS Optic Tactical Holster For Red Dot Optic, 6354DO-832-701-MS19-Parent
Safariland ALS holsters
SAFARILAND (SAFARILAND) 6354DO QLS 19 Fork, Tactical Holster, Right Hand, Multicam, Fits Glock 17 22 : Sports & Outdoors
Safariland - Milspec Retail
Safariland 6354DO ALS Optic Tactical Holster for Glock 19 / 23 MOS Gen 1-4 with SF X300 / M3 / TLR-1 / APL Flashlight ( RMR / Docter Optic )