Shockwave 590S VS Shockwave 590M - TheFirearmGuy
This video compares the Mossberg 590S and 590M Shockwave shotguns, highlighting their differences in magazine feeding, barrel length, and ammunition compatibility. The 590S is noted for its ability to reliably feed and eject mini shells, offering adaptability, while the 590M excels with its higher capacity magazine-fed system, particularly with a 20-round option. Both firearms are praised for their reliability and Mossberg's quality in the Shockwave line.










