ST9/ST40/ST45 SERIES
9mm Para., .40 S&W (disc. circa 2019), or .45 ACP cal., striker fire, polymer frame, lightened slide (ST9 SS model), 4.5 in. ported or compensated (ST9 SS) barrel, with (ST45 only) or w/o threading, 12 (ST45 only), 15, 16, or 17 shot mag., ...