Description
The Mossberg 590A1 Retrograde 12ga 20in Pump Shotgun Ghost Ring is a purpose-built defensive shotgun that brings together proven military-grade durability with a classic, no-nonsense look. Chambered in 12 gauge with a 20-inch heavy-walled barrel and a factory-installed heat shield, this model features ghost ring sights for fast, repeatable target acquisition. Designed for right-handed shooters, the 590A1 Retrograde is built on Mossberg’s legendary 590A1 platform, known for its reliability in the most demanding conditions.
Specifications
| Manufacturer | Mossberg |
|---|---|
| Model | 590A1 Retrograde |
| Gauge | 12 Gauge |
| Barrel Length | 20 inches (heavy-walled) |
| Action | Pump Action |
| Sights | Ghost Ring |
| Finish | Blued steel with heat shield (per manufacturer specs) |
| Weight | Approximately 7.25 lbs (empty, per manufacturer specs) |
| Capacity | 6+1 rounds (2-3/4 inch shells) |
| Condition | New |
Key Features
- Heavy-Walled Barrel – The 20-inch heavy-walled barrel resists heat buildup and adds rigidity for consistent shot patterns, even during extended strings of fire.
- Ghost Ring Sights – A rear aperture and front post give you a clear sight picture for quick, accurate shots at defensive distances. Great for shooters who prefer precision over a bead.
- Heat Shield – Protects your hands from barrel heat during rapid fire, and adds a rugged, classic look to the shotgun.
- 590A1 Durability – Per Mossberg specs, the 590A1 meets U.S. military specifications for reliability. Metal trigger guard, safety, and action assembly ensure it can handle hard use.
- Retrograde Styling – Walnut furniture with a satin finish gives you the feel of a classic trench gun with modern internals. It looks as good as it works.
Who It’s For
This shotgun is built for families who take home defense seriously but want a tool that’s simple to operate. New shooters will appreciate the pump action’s manual of arms, while experienced owners will value the mil-spec internals. It’s also a natural fit for anyone who wants a reliable shotgun for property protection or range practice.
Pros & Cons
- Pro: Ghost ring sights are a huge upgrade over a bead for accuracy-conscious shooters.
- Pro: Heavy-walled barrel and heat shield let you run it hard without worrying about heat.
- Pro: Proven 590A1 reliability – the same platform used by the U.S. military.
- Con: The walnut furniture is beautiful but can show wear faster than synthetic stocks. If you plan to abuse it in the elements, consider a synthetic model.
Comparison: Mossberg 590A1 Retrograde vs. Competitors
| Feature | Mossberg 590A1 Retrograde | Remington 870 Police Magnum | Benelli Supernova Tactical |
|---|---|---|---|
| Barrel Length | 20 inches | 18.5 inches | 18.5 inches |
| Sights | Ghost Ring | Bead (ghost ring optional) | Ghost Ring (on some models) |
| Capacity | 6+1 | 6+1 | 5+1 (with 3-inch chamber) |
| Weight | ~7.25 lbs | ~7.5 lbs | ~7.1 lbs |
| Stock Material | Walnut | Synthetic | Synthetic |
| Price Range | ~$946 | ~$800-900 | ~$600-700 |
The Mossberg 590A1 Retrograde stands out with its heavy-walled barrel and ghost ring sights out of the box, while the Remington 870 Police Magnum is a solid choice if you prefer synthetic furniture. The Benelli Supernova Tactical offers a lower price point but lacks the mil-spec durability of the 590A1.
Frequently Asked Questions
Is the Mossberg 590A1 Retrograde reliable for home defense?
Yes. Per Mossberg specs, the 590A1 meets U.S. military standards for reliability. The pump action is simple to operate, and the heavy-walled barrel helps manage heat during rapid fire.
Can I mount a red dot or optic on this shotgun?
The ghost ring sights are already installed and do not have a rail. You would need to purchase a Picatinny rail that mounts to the receiver (available from Mossberg or aftermarket) to add an optic.
What shells does the 590A1 Retrograde cycle reliably?
It cycles 2-3/4 inch and 3 inch shells. For best reliability, use high-brass or quality target loads during break-in. Low-recoil defensive loads also run well.
Is this shotgun left-hand friendly?
This model is configured for right-hand users. The safety is located on the tang (ambidextrous), but the ejection port is on the right side. Left-handed shooters may want to look at left-eject models.
Why Buy From Us
- ✓ Nationwide delivery to all 50 states
- ✓ Ships within 1-2 business days
- ✓ 30-day return policy
- ✓ Secure checkout
Last updated: April 2026
Related categories: Pump Action Shotguns | Home Defense Shotguns
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