The Glock G45 Gen5 is a full-size 9mm semi-automatic pistol with a 4.02-inch Glock Marksman Barrel, 10+1 capacity, and a compact-frame/full-size-slide configuration. The Gen5 updates include ambidextrous slide stop levers, a frame without finger grooves, a flared mag-well for faster reloads, and front slide serrations for slide manipulation. Three magazines are included. The black nDLC finish covers the slide. 
 

Key Specifications 

• Brand: Glock 
• Model Name: G45 Gen5 
• UPC: 764503030918 
• Caliber: 9mm Luger (9x19 Para) 
• Barrel Length: 4.02 inches 
• Overall Length: 7.44 inches 
• Weight: 1.5 lbs (approximately 25 oz) 
• Capacity: 10+1 rounds 
• Action Type: Semi-Auto Striker Fire 
• Finish: Black nDLC 
• Magazines Included: 3 
   

Detailed Features 

The Glock Marksman Barrel has an improved crown and rifling geometry compared to earlier Glock barrels. Ambidextrous slide stops allow left-handed operation without modification. The groove-free grip accommodates different hand sizes without pressure points. The flared mag-well speeds up magazine insertion under time pressure. Front slide serrations give additional purchase when working the slide from the muzzle end. 
 

Usage 

The G45's hybrid compact frame with full-size slide gives it a shorter grip for carry while maintaining the longer sight radius and barrel length of the G17. At 1.5 lbs and 7.44 inches, it is on the larger side for concealed carry but functions well as a duty pistol, home defense handgun, or range gun. The 9mm chambering provides 10+1 capacity at the lower end of the caliber's recoil spectrum.

The Glock G45 Gen5 gets strong approval from owners across defensive carry, duty use, and competition applications. The ergonomic improvements over earlier Glock generations come up repeatedly; the groove-free grip and Gen5 controls are described as fitting a wider range of hand sizes comfortably.

Accuracy is widely praised. Most owners find the Marksman Barrel produces consistent, tighter groupings compared to older Glock barrels, and the longer sight radius relative to compact variants helps at distance.

Reliability draws consistent positive feedback. Owners describe it as functioning across varied conditions and ammunition types with minimal issues, which is consistent with Glock's general reputation.

The Gen5 feature set, specifically the flared mag-well, ambidextrous slide stops, and front serrations, receives favorable mention from owners who find those upgrades practically useful rather than cosmetic.

Trigger feel is a recurring minor criticism. Most owners find it acceptable and consistent, but some would prefer a shorter reset or a different break geometry than what Glock provides. Comparisons to other brands' trigger designs come up in those discussions. Aesthetics generate occasional commentary; some owners value the utilitarian look, while others find higher-styled competitors more visually appealing. Pricing discussions appear, though most owners consider the cost in line with the G45's performance and long-term reliability.