The Safariland #578 7Ts Pro-Fit GLS holster (brand part no. 578-83-411) is built in Size 1 Standard, a right-hand shell sized to fit firearms similar to the Glock 17/20/37. The Pro-Fit design brings Safariland’s GLS (Grip Lock System) together with SafariSeven construction in a holster that adjusts to securely fit over 175 different firearms rather than a single model. GLS automatically secures the pistol when holstered and releases it with a natural middle-finger press as you establish your shooting grip, for an intuitive and safer draw than a thumb-break design. The holster body is built from a lightweight, state-of-the-art SafariSeven nylon blend that will not abrade the finish of the firearm.

Key Specifications

• Size 1 Standard sizing shaped to fit firearms similar to the Glock 17/20/37.
• Grip Lock System (GLS) automatically secures the pistol when holstered and releases with a natural middle-finger press.
• Pro-Fit adjustable design adjusts to securely fit over 175 different firearms in this size class.
• SafariSeven construction a lightweight, non-abrasive nylon blend that protects the firearm’s finish.
• Right Hand build shaped for a right-hand draw.
• Black finish a low-visibility finish suited to duty or concealed carry.

Frequently Asked Questions

How does the GLS release work? The Grip Lock System releases with a natural middle-finger press as you establish your shooting grip, rather than a separate thumb-break lever.

Does this holster fit only the Glock 17/20/37? It is sized to fit firearms similar to the Glock 17/20/37 — the Pro-Fit design adjusts to securely fit over 175 different guns in this size class.

Is this holster right- or left-hand? This listing is built for right-hand carry.

Buy the Safariland #578 7Ts Pro-Fit GLS Holster, Size 1 Standard (Similar to Glock 17/20/37), Black, Right Hand

For shooters carrying a Glock 17/20/37-sized pistol who want Safariland’s GLS retention, the 578 Pro-Fit is a versatile, secure option. Order it from our Lubbock, Texas gun shop for fast, insured shipping directly to your door — browse more from Safariland or explore our full holsters and gun leather lineup.