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From looking at Mossberg's website this particular one only takes 2 3/4 shells. I have attached the website below that has the information about the 590M. I hope this helps. https://www.mossberg.com/category/series/590m-mag-fed/

Hi, The Mossberg 590 Shockwave magazine-fed shotgun will only take 2 ¾ inch shells, while the Remington DM will take 3" magnum shells. I hope this helps

No. Only 2 3/4".