All the key features of 500/590/590A1 are there:?ambidextrous safety, dual extractors, positive steel-to-steel lockup, twin action bars, and smooth operating anti-jam elevator. MilSpec 590A1 models feature heavy-walled barrels, metal trigger guards and safety buttons; and both 590 and 590A1 models have easy-access cleanout mag tubes.
Left-handed models are compatible with standard Mossberg accessories including:? stocks, grips, sights, and rails. The FLEX™?500® L-Series model is fully-compatible with all FLEX?TLS™ System accessories.