The Beretta APX is a full-size striker-fired 9mm pistol with a 4.25-inch barrel, 17-round magazine, and polymer frame. It weighs 28.24 ounces unloaded. 
 

Key Specifications 

• Manufacturer: Beretta 
• Model: APX 
• Caliber: 9mm Luger 
• Capacity: 17 rounds 
• Barrel Length: 4.25 inches 
• Overall Length: 7.55 inches 
• Height: 5.6 inches 
• Width: 1.3 inches 
• Weight (Unloaded): 28.24 ounces (1.8 pounds) 
• Action Type: Striker-fired 
   

Detailed Features 

The APX uses a modular serialized chassis design — the chassis can be moved between different frame sizes and colors without requiring a new transfer. This is a practical feature for owners who want to change grip configuration or build a second gun around the same serialized component. The striker-fired trigger gives consistent pull weight from first to last round. A firing pin block and trigger safety prevent discharge without deliberate trigger engagement. The dovetail front sight and 2-dot rear system provide a standard sight picture. The textured grip surface works in most weather conditions. 
 

Target Audience 

Shoters looking for a full-size 9mm service pistol from an established manufacturer with modular frame capability. Works for duty use, home defense, or range training. 
 

Usage Scenarios 

For home defense or duty use the 17-round capacity and reliable striker-fired mechanism are practical. The modular chassis is useful for owners who want to run the APX in different frame configurations. The 4.25-inch barrel is a standard service length that balances velocity, accuracy, and maneuverability.

The Beretta APX is discussed as a competent, under-the-radar option in the crowded full-size 9mm service pistol market.

The modular design is consistently praised by owners who take advantage of it. The ability to move the serialized chassis between grip frames is genuinely useful and distinguishes the APX from most competitors. The trigger pull is regularly described as smooth with a reasonable weight, and most owners find it easy to shoot accurately out of the box.

Ergonomics draw positive feedback. The grip texture is effective without being abrasive, and the overall dimensions suit most hand sizes. Field strip is simple, and owners report that cleaning and maintenance are straightforward.

The slide can require some break-in or extra hand strength for initial operation, which a subset of owners with less grip strength finds notable. Finish durability concerns appear occasionally in reviews over extended use.

Reliability across a range of ammunition types is generally positive, with most owners reporting no feeding or ejection issues. The 4.25-inch barrel length is seen as a practical choice — standard service length without being oversized.

Brand recognition works both for and against the APX. Beretta's reputation in service pistols gives buyers confidence, but the APX competes in a segment where the Glock 17, M&P, and VP9 have larger installed bases and more aftermarket support. Some buyers choose the APX precisely because it is less common.