
The Mossberg 590 20 Gauge is a tactical pump-action shotgun built around the proven 590 platform. Its dual extractors, twin action bars, positive steel-to-steel lockup, and anti-jam elevator are designed to provide smooth, dependable operation. The 20-inch matte blued barrel has a cylinder bore, while ghost ring sights offer a clear and rugged aiming system. A top-mounted manual safety is accessible from either side, and the compact synthetic stock provides a 13-inch length of pull. The tri-railed forend supports the addition of compatible lights and lasers, making this 590 suitable for home-defense and general utility roles.
Key features
- 20 Gauge pump-action design with an 8+1 capacity for practical defensive use
- Dual extractors, twin action bars, and an anti-jam elevator support reliable cycling
- Positive steel-to-steel lockup helps maintain secure operation
- Top-mounted manual safety offers ambidextrous operation
- Ghost ring sights provide a durable, easily acquired sight picture
- 20-inch matte blued barrel with a cylinder bore for use with a variety of shotshell loads
The Mossberg 590 provides dependable pump-action performance for defensive and utility applications. Review local laws and select appropriate ammunition before use.
Mossberg 590 20 Gauge Shotgun: quick facts
- What caliber is the Mossberg 590 20 Gauge Shotgun?
- It is chambered in 20 Gauge.
- How many rounds does it hold?
- 8+1 rounds.
- How big and heavy is it?
- Barrel length 20 inches, overall length 40 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: Ghost Ring Sights; finish: Matte Blued.
- Is it new or used?
- New, in the original packaging.
- Can I buy it in Alabama?
- Yes. It ships to a licensed FFL dealer in Alabama; you pick it up there after the background check. Alabama: no purchase permit, no registration and no waiting period. Your dealer runs the federal check at pickup.
- Is it in stock?
- Yes, at $550.84. Orders leave within 1-2 business days; shipping is free over $999.







