#html-body [data-pb-style=STWHG87]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}Mossberg 590S models set a new standard for shotshell cycling flexibilty. Now, we've added the added benefit of optic-ready convenience. Receiver cuts allow 590S shotguns to accept low-profile direct mounting of Shield RMSc-pattern micro dot sights, for improved eye alignment and target acquisition. Cover plate is included when a sight is not mounted.