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There are pump shotguns, and then there is the 590A1. This is the gun Mossberg builds to MIL-SPEC 3443G, the same standard demanded by the U.S. military, and it shows everywhere you look. The heavy-walled 20 inch barrel, metal trigger guard, and metal safety button replace the lighter components found on standard 500 and 590 models, and the whole package wears a Parkerized finish that shrugs off weather and hard handling. If you want the closest thing to an issued duty shotgun you can put in your safe, this is it.
The 8+1 capacity magazine tube features a removable cap for easy cleaning and accepts extensions if you ever want more onboard capacity. Dual extractors, twin action bars, positive steel-to-steel lockup, and an anti-jam elevator keep the action running smoothly whether you are feeding it light target loads or full-power buckshot. The 3 inch chamber handles everything from 2-3/4 inch birdshot to 3 inch magnum slugs, and the fixed cylinder bore throws the kind of patterns you want at defensive distances. This 9-shot configuration even carries the traditional bayonet lug, a nod to its military roots that owners genuinely appreciate.
The tang-mounted safety sits right under your thumb and works the same whether you shoot right or left handed, one of the best control layouts on any pump gun. A black synthetic stock with a non-slip rubber recoil pad keeps the roughly 7.25 pound shotgun manageable, and the simple bead front sight is fast to pick up under stress. The receiver comes drilled and tapped, so adding a rail and optic down the road is straightforward.
Plenty of shotguns get called duty-grade. The 590A1 has spent decades proving it in the hands of soldiers and police officers around the world. For home defense or just owning a pump gun that will outlast you, this one has the track record to back up the talk, and Mossberg stands behind it with a 10-year limited warranty.
The 590A1 upgrades to a heavy-walled barrel, a metal trigger guard, and a metal safety button in place of the polymer parts on the standard 590. It is built to meet MIL-SPEC 3443G, the durability standard used for U.S. military procurement. If you want the toughest version of the platform, the A1 is it.
Yes on both counts. The receiver comes drilled and tapped from the factory, so adding a rail for a red dot is a simple job. The magazine tube has a removable cleanout cap and readily accepts aftermarket tube extensions if you want more than the standard 8+1 capacity.
The 3 inch chamber handles the full spectrum of 12 gauge loads, from light 2-3/4 inch target and birdshot up to 3 inch magnum buckshot and slugs. The fixed cylinder bore patterns well with buckshot at typical defensive ranges and shoots rifled slugs just fine. Owners consistently report reliable cycling across everything from weak target loads to heavy defensive ammo.
More than most pump guns. The signature tang-mounted safety sits on top of the receiver where either thumb can reach it naturally, and the dual extractors and bottom ejection port design work the same regardless of which shoulder you shoot from. It is one of the go-to pump shotguns for left-handed users for exactly that reason.
| UPC | 015813516600 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 51660 |
| Action | |
| ATF Type | Shotgun |
| Barrel Length | 20" |
| Caliber/Gauge | 12 Gauge |
| Capacity | 8 + 1 |
| Chokes Included | Fixed Cylinder Bore |
| Color | Black |
| Length | 42.75 |
| Model | |
| Package Height | 2.8 |
| Package Width | 8.2 |
| Product Type | Shotgun |
| Shipping Weight | 8.8 |
| Sights | Front Bead |
| Sights Type | Fixed Sights |
| Magazine Included | Tubular Magazine |
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