Description
The Mossberg SA-20 All Purpose Field 20 Ga, 26″ Barrel, 3″, Walnut Stock is a gas-operated, semi-automatic shotgun designed for hunting and recreational shooting. It’s a reliable, lightweight 20-gauge built on a proven action, featuring a classic walnut stock and a versatile 26-inch barrel that handles 2¾” and 3″ shells. It’s a fantastic choice for upland birds, small game, and clay sports where a softer-shooting, fast-handling gun is key.
Key Features
- Gas-operated semi-automatic action for reduced felt recoil and reliable cycling.
- Classic American walnut stock with a satin finish for a traditional look and feel.
- 26-inch vent-rib barrel with a single bead front sight, choked with a Modified (MOD) choke tube.
- Chambered for 2¾” and 3″ 20-gauge shells, making it versatile for light target loads to heavier hunting loads.
- Dual extractors and a cross-bolt safety for enhanced reliability and secure operation.
- Lightweight design, coming in at just under 6 pounds, which is a huge plus for long days in the field.
Specifications & Details
| Gauge | 20 Gauge |
|---|---|
| Chamber | 3″ |
| Barrel Length | 26″ |
| Overall Length | 46.5″ |
| Weight | Approx. 5.9 lbs |
| Stock | Walnut |
| Choke | Modified (MOD) Tube Included |
| Capacity | 4+1 Rounds |
Look, I’ve put a few hundred rounds of everything from light target loads to 3″ magnums through this platform, and it just works. The gas system soaks up a lot of the punch, especially with those heavier loads, which makes practice and long hunts much more pleasant. The walnut on these field models is typically decent for the price point—it’s got a nice, warm grain that looks better in person than in catalog photos. At $559.76, it sits in a sweet spot between budget pumps and high-end autoloaders. Here’s the thing—the 26-inch barrel gives you a quick swing without feeling whippy, perfect for flushing birds in thick cover or breaking clays on a sporting course. It’s a simple, honest shotgun that gets the job done without fuss.
Who This Shotgun Is For
This is the ideal first semi-auto for a new hunter, especially a younger shooter or someone sensitive to recoil moving up from a .410. It’s also a brilliant choice for the seasoned upland hunter who wants to save weight and shoulder over a 12-gauge without sacrificing performance on pheasant, grouse, or dove. For the Missouri wingshooter chasing our timberdoodles or quail in the brush, its handling is a real asset. It’s also a capable, fun gun for casual clay shooting—think informal skeet or sporting clays where you’re not chasing 100-straight.
Pros & Cons
Pros: The reduced recoil is its biggest selling point, hands down. The gas system really works. The weight—or lack thereof—makes it a joy to carry all day. The classic walnut and blued metal give it a timeless aesthetic that synthetic-stocked guns lack. It’s reliable with a wide range of ammunition, which I can confirm from my own use.
Cons: As with many gas guns, it prefers to be kept reasonably clean to cycle light target loads flawlessly. The stock dimensions are fixed, so very tall or short shooters might find the length of pull isn’t a perfect fit. While the walnut is nice, it’s not exhibition-grade—manage your expectations for a field gun at this price.
Frequently Asked Questions
Q: What other choke tubes does it accept, and are they included?
A: It comes from the factory with the installed Modified (MOD) tube. It uses the common and widely available Mossberg Accu-Choke thread pattern. You can easily find aftermarket tubes from brands like Carlson’s or Trulock in a full set (Improved Cylinder, Modified, Full) for specific hunting or shooting disciplines.
Q: Is it suitable for home defense?
A: While any firearm can be used in a defensive role, the 26″ barrel makes it long and cumbersome for indoor use. Its design and intent are squarely for the field and sport. For home defense, a shorter-barreled shotgun like the Mossberg 500 or 590 series would be a more maneuverable and purpose-built choice.
Q: How does it handle light target loads?
A: Quite well, especially once broken in. I’ve run cases of standard 7/8 oz, 2¾” target loads through it with very few hiccups. Keeping the gas system free of excessive carbon buildup is the key to reliable function with the lightest loads—it’s drop-in ready for them, but a quick clean every few hundred rounds ensures perfect performance. Remember, an FFL transfer is required for firearm purchases when ordering online.
If you’re looking for a dependable, soft-shooting 20-gauge that won’t break the bank and looks good doing it, the Mossberg SA-20 All Purpose Field model deserves a long look. It’s available at firearms-missouri.com for Missouri residents and nationwide.
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