For the 590M, Mossberg built upon the proven pump-action platform the company is known for, modifying the 590 Shockwave receiver to accept detachable box magazines holding five, 10, 15 or 20 rounds of 12-gauge ammunition. The 590M is the world's first double-stack shotgun magazine which features integral stabilizing ribs that engage the magazine directly to notches engineered into the receiver. Mossberg worked with Adaptive Tactical to engineer the magazine-fed 590M. The 590M mag-fed pump-action 12-gauge shotgun retails for $721.
Mossberg is no stranger to winning awards at NASGW. In 2017, they won a Caliber Award for "Best New Overall Product" for the 590 Shockwave, considered one of the most innovative pump-action shotguns released that year.
Are you looking for a great semi-automatic shotgun that is great for shooting clay birds, but that you can also hunt with? Read our review of the Mossberg 930 Pro-Series Sporting 12-gauge.