Mossberg 51773 590A1 Magpul 9 Shot 12 Gauge Pump-Action Shotgun

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Mossberg 51773 590A1 Magpul 9 Shot 12 Gauge Pump-Action Shotgun

The Mossberg 590A1 is the most durable of our pump action shotguns, meeting MIL-SPEC 3443G, with its heavy-walled barrel, metal trigger guard and safety, clean out mag tube, and Parkerized finish. Its hearty construction and proven endurance make it a prime choice for home defense applications.


  • Mil-Spec construction - the only pump-action shotgun to pass Mil-Spec 3443E
  • Heavy-walled barrels with parkerized finish
  • Metal trigger guard and safety buttons
  • Clean out magazine tube
  • Magpul SGA adjustable LOP stock with interchangeable cheek riser combs, MOE forend, sling pates


  • Gauge: 12 Gauge
  • Action Type: Pump-Action
  • Chamber Size: 3"
  • Barrel Type: Heavy-Walled
  • Barrel Length: 20"
  • Barrel Finish: Parkerized
  • Choke: Cylinder Bore
  • Capacity: 8+1
  • Length: 39.5"
  • LOP: 12.25"- 14.25"
  • LOP Type: Adjustable
  • Sights: XS Ghost Ring
  • Stock: Magpul SGA/MOE

Please Note:
The following states have restrictions on "high capacity" magazines:

  • 10 Round- CA, MA, MD, NY, HI
  • 15 Round- NJ

We cannot ship to these states unless purchased by a Law Enforcement Agency

Firearm sales are permitted to the following individuals with valid credentials:

  • Sworn Law Enforcement officers, including Federal, State, County, & City (Includes retired L.E. officers with "retired" credentials)
  • EMT's, Fire Fighters, Volunteer Fire Fighters, and Paramedics
  • Military personnel including Reservists and National Guard with I.D. (Includes retired Military with "retired" credentials)
  • Military veterans medically and honorably discharged with retired ID or DD-214
  • Corrections Officers, including Parole and Probation Officers
  • State Licensed Security Companies (Loomis, RAM, etc.) also includes State Licensed Armed Security Officers
  • Court Judges, District Attorneys and Deputy District Attorneys with Powers of Arrest
  • LE Academy Cadets with enrollment documentation from the Academy