Quick view Safariland Safariland, 578 GLS, Pro-Fit, Wide Frame Holster, Left Hand, Plain Black, Standard (Similar to GL17, 20, 37), SafariSeven Material $70.00 The Model 578 GLS(TM) Pro-Fit brings the unique GLS(TM) (Grip Lock System) and SafariSeven(TM) together in a holster designed to fit a wide variety of guns. The Pro-Fit(TM) is customizable and adjusts to securely fit over 60 firearms. The 578 also... Compare Add to Cart