144: Arex Model Rex Zero 1S in 9 MM with 4 1/4" Barrel. This semi-auto pistol features two magazines, an ambi magazine release button, aluminum frame, steel slide, external hammer, large trigger guard, white dot iron sight, ambi manual safety, decocking lever, loaded chamber indicator, extended Picatinny accessory rail and a hardcoat anodized black finish. The gun is in excellent condition and it comes in its original box with Estimated Value: Low: $750 High: $900