Mossberg’s flagship 12-gauge, 3-inch shotgun, the 590A1 is the company’s most durable pump action. Carried by members of every branch of the U.S. Armed Services and by military and law enforcement agencies in over 70 countries worldwide, the 590A1 defines “field proven”. As Mossberg continues to refine and upgrade these firearms, the 590A1 joins the new Professional Series of firearms. Each gun in this series undergoes an enhanced assembly and quality control process, has special finishes and features, such as refining touches to the loading port to help optimize performance. Mossberg is offering nine versions of the 590A1 in their Professional Series including 9-shot and 7-shot versions with the option of Cerakote® or Marinecote™ metal finishes; Compact stocks and Magpul®-equipped models; a 6-shot NFA/Class 3 offering; and options with orange furniture.
At the core of the 590A1 is Mossberg’s venerable 500® and 590™ pump-action platforms featuring non-binding twin action bars; positive steel-to-steel lock-up and anti-jam elevator; dual extractors; aluminum receiver coated with corrosion resistant matte finish; drilled and tapped receivers; and ambidextrous top-mounted safety. Standard upgrades to the 590A1 include convenient clean-out magazine tube, heavy-walled barrels, and metal trigger guard and safety.
Key Features of the 590A1 Professional Series Pump-Action Shotguns:
20, 18.5 and 14-inch heavy-walled barrels with cylinder bore.
Metal rear Optimized Ghost Ring and front fiber optic sights equipped with protective low-profile wings.
Lower profile sights assist with acquiring the sight picture, allow for ease of racking/unracking guns in cruisers, and are optimized for common, lower velocity tactical payloads utilized by law enforcement.
Adapter plates provided for optic-ready receiver for mounting RMR®, Docter™, and Leupold® footprints to the optic cut in the receiver which is covered by certain patents and patent pending.
Optional metal finishes for added durability: Cerakote Tungsten metal exterior finish, a polymer-ceramic coating that provides superior corrosion resistance and abrasion resistance or Mossberg’s proprietary Marinecote metal finish that includes a nickel-plating aspect.
Two stock options utilizing stock spacer systems for customization. Magpul SGA® variable length-of-pull (LOP) stock adjusts in .5” increments from 12.25 – 14.25 inches. Compact stock features a one-inch insert for adjustment from 12 – 13 inches.
Black and Orange synthetic stock and forend options.
Magpul MOE® forend offers an extended length with front and rear hand stops and M-LOK® slots for ease of adding accessories. The Compact models feature a traditional corncob-style forend.
Magpul models have QD cups on the stock and forward sling mount which allows for one or two-point sling attachment.
Drilled and tapped receiver.
Refined loading port and oversized, ambidextrous safety for ease of operation.
With its high-quality construction and field proven endurance, the Mossberg 5901 Professional Series pump-action shotguns provide agencies with the ultimate defensive tool. For complete specifications of the 590A1 and the full line of Professional Series firearms, please visit https://www.mossberg.com/law-enforcement.
Mossberg 590A1 Professional Series Pump-Action Shotgun Specifications:
ITEM
TYPE
GAUGE / CHAMBER
CAP.
(2.75 in)
BARREL / FINISH
SIGHTS
CHOKES
OVERALL LENGTH
LOP
STOCK / FINISH
APPROX WEIGHT
MSRP
50796
590A1
9 Shot
Compact Cerakote
12 GA
3 in
8 + 1
20 in
Heavy Wall
Tungsten Cerakote
Optimized
Metal GR
FO Front
Optic Ready
Cylinder Bore
39.25 in
12 – 13 in
Variable Adj
Compact Stock
Corncob Forend
Black Synthetic
7 lbs
$1,074
50797
590A1
9 Shot
Magpul
Cerakote
12 GA
3 in
8 + 1
20 in
Heavy Wall
Tungsten Cerakote
Optimized
Metal GR
FO Front
Optic Ready
Cylinder Bore
39.5 in
12.25 – 14.25 in
SGA Variable LOP
MOE Forend
w/ M-LOK
Black Synthetic
7.25 lbs
$1,235
50790
590A1
7 Shot
Compact Cerakote
12 GA
3 in
6 +1
18.5 in
Heavy Wall
Tungsten Cerakote
Optimized
Metal GR
FO Front
Optic Ready
Cylinder Bore
37.75 in
12 – 13 in
Variable Adj
Compact Stock
Corncob Forend
Black Synthetic
6.75 lbs
$984
50795
590A1
7 Shot
Magpul
Cerakote
12 GA
3 in
6 +1
18.5 in
Heavy Wall
Tungsten Cerakote
Optimized
Metal GR
FO Front
Optic Ready
Cylinder Bore
38 in
12.25 – 14.25 in
SGA Variable LOP
MOE Forend
w/ M-LOK
Black Synthetic
7 lbs
$1,235
50793
590A1
7 Shot
Compact
Marinecote
12 GA
3 in
6 +1
18.5 in
Heavy Wall
Marinecote
Optimized
Metal GR
FO Front
Optic Ready
Cylinder Bore
37.75 in
12 – 13 in
Variable Adj
Compact Stock
Corncob Forend
Black Synthetic
6.75 lbs
$1,170
50794
590A1
7 Shot
Magpul
Marinecote
12 GA
3 in
6 +1
18.5 in
Heavy Wall
Marinecote
Optimized
Metal GR
FO Front
Optic Ready
Cylinder Bore
38 in
12.25 – 14.25 in
SGA Variable LOP
MOE Forend
w/ M-LOK
Black Synthetic
7 lbs
$1,396
50791
590A1
7 Shot
Compact Orange
Cerakote
12 GA
3 in
6 +1
18.5 in
Heavy Wall
Tungsten Cerakote
Optimized
Metal GR
FO Front
Optic Ready
Cylinder Bore
37.75 in
12 – 13 in
Variable Adj
Compact Stock
Corncob Forend
Orange Synthetic
6.75 lbs
$959
50792
590A1
7 Shot
Magpul
Orange
Cerakote
12 GA
3 in
6 +1
18.5 in
Heavy Wall
Tungsten Cerakote
Optimized
Metal GR
FO Front
Optic Ready
Cylinder Bore
38 in
12.25 – 14.25 in
SGA Variable LOP
MOE Forend
w/ M-LOK
Orange Synthetic
7 lbs
$1,120
50798
590A1 NFA
6 Shot
Compact
Cerakote
12 GA
3 in
5+1
14 in
Heavy Wall
Tungsten Cerakote
Optimized
Metal GR
FO Front
Optic Ready
Cylinder Bore
32 in
12 – 13 in
Variable Adj
Compact Stock
Corncob Forend
Black Synthetic
6.25 lbs
$1,074
Cerakote® is a registered trademark of NIC Industries, Inc. Magpul®, SGA®, MOE®, and M-LOK® are registered trademarks of Magpul Industries Corp. RMR® is a registered trademark of Trijicon, Inc. Docter™ is a trademark of Docter Optics SE. Leupold® is a registered trademark of Leupold & Stevens, Inc.
About O.F. Mossberg & Sons, Inc.
Founded in 1919, O.F. Mossberg & Sons, Inc., is the oldest family-owned firearms manufacturer in America, and is the largest pump-action shotgun manufacturer in the world. Celebrating 100 years of innovation, Mossberg leads the industry with over 100 design and utility patents to its credit and stands as the first ISO 9001 Certified long-gun manufacturer. Complete information on commercial, special purpose, law enforcement, and military shotguns, rifles, handguns and accessories are available at mossberg.com or by calling 1-800-363-3555. Mossberg can also be found on Facebook, Instagram, Twitter, and YouTube.
