Mossberg 590RM (50213/50218) – These 12-gauge, 2.75-inch magazine-fed pump actions feature an 18.5-inch barrel with integrated heat shield, compact forend, 5-position adjustable stock with ...

Mossberg is extending AR-15 familiarity and compatibility to their 590 pump-action shotgun lineup with the all-new ... an integrated barrel heat shield and an M-Lok adapter on the end of the ...