Mossberg 590M 20 Round Magazine Black

A: Marsalis, yes Sir it will fit. no problem.

A: Marsalis, This 20 round magazine will fit and function in the 590m Shockwave. Loaded with 20 rounds it weighs about as much as the firearm.

A: yes it will fit the 590M shockwave just fine

A: Marsalis - Yes it will fit - the shockwave is a "590" receiver, for which this magazine is manufactured.

A: No they don't make a 20G Magazine and this fits - Mossberg 590M Mag-Fed Factory Built 12 Gauge Shotgun Only Note: Will NOT work with a standard Mossberg 590.

A: Shamare, no it fits only the 12 Gauge. Maybe the 20 Gauge Mag Fed shotgun will be in the near future.

A: Hi Shamare, No they don't make a 20G Magazine and this fits - Mossberg 590M Mag-Fed Factory Built 12 Gauge Shotgun Only Note: Will NOT work with a standard Mossberg 590.

A: sorry at this time Mossberg does not make a 20 ga detachable magazine shockwave the only make the 20 ga shockwave with a 6 round tube magazine