Arex Rex Zero 1 pistol The Rex Zero 1 is a series of semi-automatic, DA/SA (double-action/single-action) handguns manufactured by the Slovenian company Arex. It was first introduced to the U.S. market around 2016 through the importer FIME Group. Key historical and design points: Military-grade design: Although it was Arex's first handgun, the company had years of experience manufacturing defense products. The pistol was designed to meet strict military standards for reliability and durability. Influenced by the SIG P226: The Rex Zero 1 design draws heavily from the reliable mechanics of the SIG Sauer P226 but with several added features. High-quality construction: The pistols are noted for their solid build quality, featuring a hard-anodized aluminum frame and a nitrocarburized steel slide, both milled from solid bar stock. Service life: They were engineered for an impressive 30,000-round service life, according to the manufacturer. Compact model (15-round): The specific model in your query, the compact 15-round version (the Rex Zero 1CP), was released to the U.S. market in 2017. This firearm comes with 2 17 round mags in original case