Caliber: 9mm. Capacity: 13-round magazine. Barrel: 3.8”, 4”, 4.5”. Grips: Three interchangeable backstraps. Sights: 3-dot sights or tritium night sights. Weight: 24 oz. unloaded. Finish: Matte black. Aggressive forward and rear slide serrations and accessory rail. Made in Turkey. Values are for the STR-9, STR-9C, and STR-9F; add 17% for the STR-9MC model; add 67% for the STR-9S Combat X model; add 77% for the STR-9 Thinline; add 93% for the STR-9S Combat variant.