The Glock 49 Gen5 MOS is a 9mm semi-automatic pistol with a 4.49-inch Glock Marksman Barrel and an nDLC black finish. The polymer frame and MOS optics system are standard Gen5 features. It ships with three 15-round magazines and includes front slide serrations and a flared mag-well. Overall length is 7.95 inches and weight is 25.93 oz. 
 

Key Specifications 

• Manufacturer: Glock 
• Model: G49 Gen5 MOS 
• Type: Semi-Auto Pistol 
• Caliber: 9mm 
• Barrel Length: 4.49 inches 
• Overall Length: 7.95 inches 
• Capacity: 15+1 rounds (includes three magazines) 
• Weight: 25.93 oz (approximately 1.62 lbs) 
• Finish: nDLC Finish in Black 
• Sights Type: Fixed Sights 
• Optics Ready: Yes, with Modular Optics System (MOS) 
• Frame Material: Polymer Frame 
   

Detailed Features 

The MOS cut lets you mount compatible red dot sights without gunsmithing. The Glock Marksman Barrel gives better accuracy than the traditional polygonal Glock barrel. Front slide serrations and a flared mag-well are practical additions for faster reloads and slide manipulation under stress. The Safe Action trigger system's three integrated safeties function automatically. 
 

Usage 

The G49 sits between Glock's compact and full-size frame sizes, it has the compact grip of the G19 but the slide length of the G17. That combination works for duty carry, home defense, and competition where a longer sight radius helps. The MOS capability makes it a practical base for mounting optics without buying a dedicated optics-ready pistol.

The Glock 49 Gen5 MOS draws the kind of feedback you'd expect from a Glock. Reliability tops every list. Users report consistent function across a wide range of 9mm ammunition, and the platform's track record in law enforcement carries weight in these discussions.

The MOS system gets strong positive marks. Competitive shooters and duty users both appreciate being able to mount a red dot without permanent slide modification. The Glock Marksman Barrel accuracy improvement over older Glock barrels is mentioned as a genuine upgrade.

Gen5 grip texture, the removal of finger grooves, and the flared mag-well are consistently praised for improving handling compared to earlier generations. The 15-round capacity works for most use cases without making the grip oversized.

Price is a point of friction for some, Glocks carry a name premium and comparable striker-fired pistols from other brands can undercut the price. Aesthetics generate some debate, as the classic Glock look has not changed much in decades. The aftermarket for Glocks is the largest in the industry, which is either a plus (endless upgrade options) or irrelevant (most owners run them stock).

The G49's hybrid sizing is both its appeal and its occasional critique. Some users simply prefer full-size or true compact rather than the hybrid format.