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Glock 17 Gen 5 FS MOS | 9mm Full-Size Pistol | Modular Optic System | Front Serrations | 17+1

The Glock 17 Gen 5 FS MOS is the optics-ready, front-serrated Gen 5 evolution of Glock’s flagship full-size 9mm service pistol. With a precision-machined MOS slide accepting multiple adapter plates for direct red dot sight mounting, front serrations for faster and more positive slide manipulation, the Glock Marksman Barrel (GMB), nDLC surface finish, flared magwell, ambidextrous slide stop lever, reversible magazine catch, Modular Backstrap System, and high-visibility orange magazine followers, the Glock 17 Gen 5 FS MOS is the most fully featured and optics-ready G17 ever produced. Includes three 17-round magazines.

Note: Purchase of firearms in South Africa requires a valid firearms licence and compliance with the Firearms Control Act. This firearm is sold subject to applicable South African legal requirements.

What Makes the Glock 17 Gen 5 FS MOS the Ultimate Full-Size Glock

Modular Optic System (MOS) | Direct Red Dot Mounting
The Glock 17 Gen 5 MOS slide is precision machined with a rear optic mounting footprint that accepts multiple adapter plates, allowing direct mounting of popular miniature red dot sights including the Trijicon RMR, Leupold DeltaPoint Pro, Aimpoint ACRO, Holosun 507/508 series, and others. With multiple adapter plates, you can quickly and easily mount miniature red dot sights to the rear of the Gen5 Glock slide. The MOS system allows the shooter to upgrade to a red dot without requiring custom milling of the slide, maintaining the factory warranty and enabling optic changes without gunsmithing.

Front Serrations (FS) | Faster and More Positive Slide Manipulation
The Glock 17 Gen 5 FS adds front serrations to the slide for positive grip during press checks, chamber clearing, and any manipulation technique that contacts the front of the slide. Front serrations are particularly valued by defensive and duty shooters who prefer a press check as part of their administrative handling routine, and by competition shooters who use front-of-slide techniques for faster manipulation during stage reloads.

Glock Marksman Barrel (GMB) | Enhanced Accuracy
The Glock 17 Gen 5 FS MOS is fitted with the Glock Marksman Barrel (GMB) featuring improved rifling geometry for enhanced accuracy compared to previous generation Glock barrels. The GMB is a Gen 5 standard feature that contributes to tighter groups and is particularly beneficial when paired with a red dot optic that reveals accuracy improvements not visible through iron sights.

nDLC Surface Finish | Hardest and Most Corrosion-Resistant Glock Finish
The Glock 17 Gen 5 FS MOS uses Glock’s nDLC (Diamond Like Carbon) surface finish on all major metal components, providing unmatched hardness and rust resistance compared to the nPVD finish used on earlier generations and the 19X. The nDLC finish is the most durable factory Glock finish available, maintaining its appearance and protective properties through sustained use in harsh environmental conditions.

Flared Magwell | Faster Reloads
The Gen 5 G17 MOS FS features a flared magwell that funnels the magazine into the grip during reloads more effectively than the straight magwell of previous Glock generations, reducing the precision required for a fast reload and improving reload consistency under stress and in competition.

Gen 5 Platform Features | No Finger Grooves, Ambidextrous Controls, High-Vis Followers
The Glock 17 Gen 5 FS MOS includes all Gen 5 platform improvements: no finger grooves for universal grip accommodation, an ambidextrous slide stop lever on both sides of the frame, a reversible magazine catch for left-handed operation, high-visibility orange magazine followers for instant visual confirmation of an empty magazine, and the Modular Backstrap System (MBS) with interchangeable backstrap sizes for grip customisation.

Glock 17 Gen 5 FS MOS Full Specifications

• Model: Glock 17 Gen 5 FS MOS
• Calibre: 9mm Luger (9x19mm)
• Action: Semi-automatic, striker-fired (Safe Action)
• Capacity: 17+1 rounds
• Barrel: Glock Marksman Barrel (GMB), 4.49 inches (114mm)
• Overall Length: 7.95 inches (202mm)
• Height: 5.47 inches (139mm) with magazine
• Width: 1.34 inches (34mm)
• Weight (unloaded): 25.26 oz (716g)
• Twist Rate: 1:9.84 inches
• Trigger Pull: Approximately 5.5 lbs
• Safety System: Safe Action (trigger, firing pin, drop safeties)
• Frame: High-strength polymer, Gen 5 texture, no finger grooves, flared magwell
• Slide Finish: nDLC black
• Barrel Finish: nDLC
• Front Serrations: Yes
• Optic System: MOS (Modular Optic System) with adapter plates included
• Sights: Fixed polymer (front and rear)
• Slide Stop: Ambidextrous
• Magazine Catch: Reversible
• Backstraps: Modular Backstrap System (MBS), multiple sizes included
• Magazine Followers: High-visibility orange
• Rail: Picatinny-compatible accessory rail
• Includes: Three 17-round magazines, MOS adapter plates, hard case, backstrap set, cleaning kit, cable lock, manual
• Made in: Austria
• Ideal For: Duty use, home defence, competition, optics-ready builds, range training
• Brand: Glock