The 24" barrel could be the products of a different manufacturing system created by Mossberg to contribute to extra precise shot placement when applying manufacturing unit created ammunition. The barrel is topped with a vented rib and outfitted with a HIVIZ TriComp fiber-optic front sight. Taran Tactical Innovations (TTI) and https://messiahugrbc.jiliblog.com/86592113/mossberg-590a1-night-sights-no-further-a-mystery