Kansas Gunshop is a Wichita, KS-based retailer specializing in firearms and FFL transfers. The 590 20 Gauge Pump Shotgun with 20 Inch Barrel is a reliable, compact pump-action shotgun well-suited for home defense and general utility. Its 20-inch barrel offers a good balance of maneuverability and pattern spread. Available now for $299.00.
Reviewed by Derek, Owner & FFL Holder at Kansas Gunshop. Kansas-licensed FFL dealer since 2008, NRA Range Safety Officer.
Last updated: April 2026
What are the specifications of the 590 20 Gauge Pump Shotgun?
| Product Type | Pump-Action Shotgun |
|---|---|
| Gauge | 20 Gauge |
| Chamber | 3″ |
| Barrel Length | 20 inches |
| Capacity | 6+1 Rounds (2.75″ shells) |
| Stock Material | Synthetic |
| Finish | Matte Blued |
| Sights | Bead Front |
| Overall Length | Approximately 40.5 inches |
| Weight (Unloaded) | Approximately 6.5 lbs |
| Country of Origin | USA |
| Condition | New |
| SKU | 50431 |
What are the key features of this 590 20 gauge pump shotgun?
- 20 Gauge Power: The 20 gauge offers a good balance of recoil management and stopping power, making it a viable option for home defense and general shooting without the heavier recoil of a 12 gauge.
- 20-Inch Barrel: This barrel length provides a compact footprint for maneuverability in tight spaces, which is a plus for home defense scenarios. It also helps keep the overall weight down.
- Pump-Action Reliability: The Mossberg 590 series is known for its robust and dependable pump-action mechanism, capable of cycling a wide range of ammunition types.
- Dual Extractors: A feature common to Mossberg pump guns, dual extractors contribute to reliable shell ejection.
- Ambidextrous Tang Safety: The top-mounted safety is easily accessible for both right and left-handed shooters, a practical design choice for quick engagement and disengagement.
- Ventilated Recoil Pad: Helps to mitigate felt recoil, making for a more comfortable shooting experience, especially during extended range sessions.
- Synthetic Stock and Forend: Durable and weather-resistant, the synthetic furniture can handle adverse conditions without concern for warping or damage.
Who is the 590 20 Gauge Pump Shotgun with 20 Inch Barrel for?
This 590 20 gauge pump shotgun is a solid choice for a few different types of shooters.
Buy it if:
- You’re looking for a reliable home defense shotgun that’s easier to manage than a 12 gauge.
- You want a versatile shotgun for occasional target shooting or small game hunting where a 20 gauge is appropriate.
- You appreciate the proven track record of the Mossberg 500/590 series.
- You need a compact shotgun for maneuvering in confined spaces.
- You prefer a pump-action firearm for its inherent reliability and simpler operation.
Skip it if:
- You require the maximum stopping power of a 12 gauge for specific applications (see our 12 Gauge Shotguns for alternatives).
- You plan on extensive long-range hunting where a longer barrel and interchangeable chokes are essential (see our Hunting Shotguns).
- You prefer a semi-automatic action for faster follow-up shots (check out our Semi-Automatic Shotguns).
How does the 590 20 Gauge compare to other shotguns?
| Feature | 590 20 Gauge (This Product) | Cheap Import Pump (e.g., Maverick 88) | Premium Pump (e.g., Remington 870 Wingmaster) |
|---|---|---|---|
| Material | Steel receiver, synthetic stock | Steel receiver, synthetic stock | Steel receiver, walnut/steel |
| Quality | Good, utilitarian, reliable | Acceptable for the price, functional | Very good, refined, durable |
| Compatibility | Good aftermarket support for Mossberg 500/590 parts | Limited aftermarket support | Extensive aftermarket support for Remington 870 parts |
| Shipping | Ships from Wichita, KS | Varies by retailer | Varies by retailer |
| Lifespan/Durability | Years of service with proper care | Decent lifespan for casual use | Decades of service, heirloom quality |
| Price | $299.00 | ~$200-$250 | ~$600+ |
Frequently Asked Questions about the 590 20 Gauge Pump Shotgun
Is a 20 gauge shotgun good for home defense?
Yes, a 20 gauge shotgun can be very effective for home defense. With appropriate ammunition, it delivers significant stopping power while generally producing less recoil than a 12 gauge, making it easier for many shooters to control and shoot accurately.
What is the capacity of the 590 20 Gauge Pump Shotgun with a 20-inch barrel?
This specific 590 20 Gauge model with a 20-inch barrel typically has a capacity of 6+1 rounds when using standard 2.75-inch shells. Capacity may vary slightly with 3-inch shells.
Can I hunt with a 20 gauge 590?
While the 20-inch barrel is shorter than traditional hunting barrels, you can certainly hunt with a 20 gauge 590 for certain applications. It’s suitable for small game, upland birds, and even deer with slugs, depending on local regulations and the effective range. For waterfowl, you’d want to check local laws regarding barrel length and shell capacity.
Does the 590 20 Gauge use interchangeable chokes?
Most base model Mossberg 590 shotguns, especially those with fixed bead sights and shorter barrels like this one, come with a fixed cylinder bore choke, meaning they do not have interchangeable chokes. This is common for home defense-oriented shotguns where a wide pattern is desired.
Where can I buy a 590 20 gauge pump shotgun with 20 inch barrel online?
You can purchase the 590 20 gauge pump shotgun with 20 inch barrel right here at Kansas Gunshop (kansas-gunshop.com). We are a licensed FFL dealer and will facilitate the transfer to your local FFL.
Is the Mossberg 590 series reliable?
The Mossberg 590 series, including this 20 gauge model, is widely regarded as one of the most reliable pump-action shotguns available. Its design, featuring dual extractors and an anti-jam elevator, contributes to its consistent performance under various conditions.
What’s the difference between a Mossberg 500 and a 590?
The primary differences between the Mossberg 500 and 590 series generally revolve around magazine tube design and barrel attachment. The 590 typically features a full-length magazine tube that extends to the end of the barrel, and the barrel is secured by a cap, allowing for easier barrel changes. The 500 often has a shorter magazine tube and the barrel is secured by a lug that attaches to the magazine tube itself.
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Last updated: April 2026
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