If you're looking for a serious, high-performance holster that won't break the bank, the Galco Cop Series is a great option.
Galco's Cop 3 Slot holster is precision-molded and allows comfortable carry in both strong side and crossdraw positions. A tension screw adjustment near the trigger guard facilitates maximum firearm retention, while the rear sight is protected by a wide safety strap and reinforced thumb break. The low-cut design allows for easier, faster clearance of the firearm from the leather.
Gun Fit - Glock 37
Gun Fit - Glock 21 SF Standard Glock Rail
Gun Fit - Glock 21
Gun Fit - Glock 20