Arex REX Zero 1 Tactical 9mm, Full-Size, Threaded 4.9 in Barrel, DA/SA, AOR Optics-Ready, 18+1, Black
The Arex REX Zero 1 Tactical stands out as a full-size 9mm with a factory-threaded, extended, cold hammer forged barrel and the Arex Optics Ready (AOR) slide interface. Built with a nitrocarburized high-carbon steel slide and an aluminum alloy frame, it features raised steel 3-dot sights, a MIL-STD-1913 Picatinny rail, and DA/SA operation with both a manual safety and decocker. This example includes two 18-round magazines and the factory case, shows triple-matched serial numbers on the barrel, slide, and frame, and reflects Arex’s NATO testing and a stated 30,000-round service-life expectation.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are some minor scratches and blemishes present. There is a large scratch just below the ejection port.
What’s Included
- Arex factory hard case (REX ZERO1T-01 label)
- Manual
- Cleaning kit
- Arex AOR optics mounting plates
- Two 18-round steel double-stack magazines with "+2" base pads marked "PLUS 2"
The Tactical configuration centers on a 4.9-inch, extended, cold hammer forged chrome-moly steel barrel threaded M13.5x1 LH. The setup supports common 9mm accessories that use left-hand metric threads while maintaining a full-size sight radius and balance.
The slide is high-carbon steel with a nitrocarburized surface and front and rear serrations. The frame is aluminum alloy with full-length frame rails and a MIL-STD-1913 Picatinny accessory rail on the dust cover. Markings include AREX, SLOVENIA and the U.S. import mark from Global Ordnance.
Operation is DA/SA, hammer-fired, short-recoil, locked-breech. Controls include a manual safety and decocker, plus an exposed spurred hammer for positive control. Capacity is 18+1, and two 18-round steel magazines with "+2" base pads are included.
Sighting equipment consists of raised steel 3-dot sights: a white-dot front and a square-notch rear with two white dots. The Arex Optics Ready (AOR) interface is built into the slide with a removable cover plate, and the included AOR mounting plates provide mounting options.
This pistol was designed and tested to NATO criteria with a stated 30,000-round service-life expectation. It also features triple-matched serial numbers on the barrel, slide, and frame, reflecting factory assembly integrity.