The Zero 1 is a 9mm pistol with single/double action operation. The 4.25" cold hammer forged barrel, nitrocarburized steel slide, and full-length slide rails give it a solid foundation for both range use and personal defense. 
 

Key Specifications 

• Model: Zero 1 
• Caliber: 9MM LUGER (9X19 PARA) 
• Action: Single/Double Action 
• Capacity: 17 Rounds 
• Barrel Length: 4.25 inches 
• Weight: 2.6 lbs. 
• Finish: Black Hardcoat Anodized 
   

Detailed Features 

• Nitrocarburized Steel Slide & Parts: Increases durability and resistance to wear and corrosion. 
• Cold Hammer Forged Barrel: Consistent accuracy and longevity under heavy use. 
• Ambidextrous Controls: Magazine release and manual safety work for left- or right-handed shooters. 
• Crisp Short Reset Trigger: Enables fast follow-up shots. 
• Full Length Slide Rails & Steel Guide Rod: Contribute to stability during operation. 
• Picatinny Rail: Accepts lights or lasers for low-light use. 
   

Target Audience 

Works well for new shooters who want something forgiving to learn on, and for experienced shooters who want a reliable DA/SA sidearm for competition or carry. The 17-round capacity and dual-action system suit both use cases. 
 

Usage Scenarios 

At the range, the cold hammer forged barrel produces consistent groupings during rapid fire. For home defense, the 17-round capacity and ambidextrous controls make it usable under stress without fumbling for hand-specific controls.

The AREX Zero 1 gets generally positive marks for build quality -- it feels well-made and solid in hand, which matters for a pistol in its price range. The ergonomics get regular praise; shooters find the grip comfortable, and that tends to show up in accuracy results.

The DA/SA trigger is well-regarded. The pull is smooth, the reset is short, and most shooters adapt to it without much trouble, though those coming from striker-fired pistols note there's an adjustment period.

On the critical side, the pistol runs heavier than some comparable options, which affects extended carry comfort. Magazine availability and cost come up as friction points -- AREX isn't as widely stocked as mainstream brands, so sourcing spares takes more effort. Brand recognition also plays a role in purchasing hesitation for buyers not already familiar with AREX.

Overall, owners who buy it tend to rate the value favorably given what the pistol delivers versus what it costs.