The Glock 19X MOS is a 9mm striker-fired pistol that pairs the G19 slide with the G17-length grip frame, finished in Coyote Brown. It holds 19+1 rounds with a 4.52-inch Glock Marksman Barrel threaded for suppressor attachment. 
 

Key Specifications 

• Caliber: 9mm Luger 
• Barrel Length: 4.52 inches 
• Capacity: 19+1 rounds 
• Weight: 24.83 oz. 
• Finish: Coyote Brown 
• Frame Material: Polymer 
• Firing System: Striker-fired action 
• Safety Features: Safe Action Safeties 
   

Detailed Features 

 
The Glock Marksman Barrel (GMB) has a 1-in-9.84-inch twist rate for improved accuracy. The MOS cut on the slide accepts direct-mount optics without an adapter plate. Ameriglo Tall Back Up Sights are included for use alongside a mounted optic or as standalone irons in low-light. Interchangeable backstraps let shooters adjust grip fit. A rail on the front of the frame accepts lights or lasers, and the package includes a magazine loader. 
 
The 19X was originally developed as Glock's submission for the U.S. Army XM17 MHS competition, which explains the G17 grip paired with a G19 slide. 
 

Usage Scenarios 

 
The 19+1 capacity and suppressor-ready threaded barrel suit home defense and tactical use. The MOS optic cut is practical for duty or competition shooters who want to run a red dot. The G17-length grip can be a factor for concealed carry. It prints like a full-size pistol despite the shorter slide.

The Glock 19X MOS in Coyote with threaded barrel draws consistent praise for reliability and the combination of G17 capacity with a G19 slide. The MOS optic system gets a lot of positive attention from shooters who want a red dot, and the threaded barrel is a draw for suppressor users. The coyote finish is noted as distinctive compared to standard Glock black.

Critique is narrower. The grip texture is described as moderate, enough for most shooters but not aggressive enough for those who prefer a very secure purchase in wet conditions. The full-size G17 grip makes this a harder concealed carry choice than a standard G19. Price comes up as higher than comparable Glock models without the MOS or threaded barrel, and a few users find aftermarket support for the 19X narrower than for the G17 or G19 individually.