590 Tactical shotguns are based upon Mossberg’s proven 500 pump-action platform and include non-binding twin action bars; positive steel-to-steel lock-up and anti-jam elevator; dual extractors; drilled and tapped receivers; cylinder bores; and universally-recognized, ambidextrous top-mounted safety. Enhancing the decades-proven 500 platform is a convenient clean-out magazine tube with cap for ease of maintenance on all 590 shotguns.