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Mossberg 590A1 M-LOK 12 Gauge Blue/Black Shotgun

The Mossberg 590A1 M-LOK is a durable 12 Gauge pump-action shotgun built around MilSpec construction and a heavy-walled barrel. This configuration features an 18.5-inch barrel, 7-round capacity, Black Synthetic furniture, a metal trigger guard, an ambidextrous tang-mounted manual safety, and an M-LOK forend for compatible accessory mounting. Its 3-inch chamber supports a broad range of shotshell loads, while the bead sight provides a straightforward aiming reference.

Key features

  • Pump-action design provides dependable manual cycling and straightforward operation
  • Heavy-walled barrel and MilSpec construction support demanding service use
  • M-LOK forend enables flexible mounting of compatible accessories
  • 7-round capacity supports practical defensive and field applications
  • 3-inch chamber accommodates a wide range of 12 Gauge shotshells
  • Ambidextrous tang-mounted manual safety is accessible from either side of the shotgun

The Mossberg 590A1 M-LOK combines rugged construction with practical accessory compatibility for users seeking a dependable pump-action shotgun.

Mossberg 590A1 M-LOK 12 Gauge Blue/Black Shotgun: quick facts

What caliber is the Mossberg 590A1 M-LOK 12 Gauge Blue/Black Shotgun?
It is chambered in 12 Gauge.
How many rounds does it hold?
7 rounds.
How big and heavy is it?
Barrel length 18.5 inches, overall length 38.5 inches, weight 7.25 pounds.
What kind of action does it use?
Pump Action.
Is it optic ready or threaded?
Optic ready: No; threaded barrel: No.
What sights and finish does it have?
Sights: Bead Sights; finish: Blue/Black.
Is it new or used?
New, in the original packaging.
Can I buy it in North Carolina?
Yes. It ships to a licensed FFL dealer in North Carolina; you pick it up there after the background check. North Carolina buyers pick this up at a licensed dealer after a NICS check, with no state permit and no waiting period; dealers sell rifles and shotguns from age 18.
Is it in stock?
Yes, at $703.79. Orders leave within 1-2 business days; shipping is free over $999.

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