The Mossberg 590 is one of the most recognized fighting shotguns in the US, and the Tactical models are its most straightforward home-defense configurations. Both have the ambidextrous top tang safety, the same pump and slide-release controls, and cylinder-bore barrels suited to buckshot. The only real decision is length versus capacity.
Mossberg 590 Tactical 12ga
18.5" · 6+1
Mossberg 590 Tactical 12ga
20" · 8+1 · cylinder bore
| 590 Tactical 6+1 | 590 Tactical 9-shot | |
|---|---|---|
| Barrel | 18.5" | 20", cylinder bore |
| Listed capacity | 6+1 (2¾") | 8+1 (2¾") |
| Safety | Top tang, ambidextrous | Top tang, ambidextrous |
| Best for | Hallways, apartments, smaller shooters | Larger homes, max capacity |
Specs from product listings as of 2026-09-17.
Handling: the 1.5 inches that matter
Indoors, what gets you in trouble isn't total length so much as how far the muzzle extends past your body as you move. A longer muzzle is easier to bump into doorframes and easier for someone around a corner to reach. An extra 1.5" of barrel sounds trivial; with a light mounted on the forend and a full magazine tube adding weight out front, the 20" gun feels noticeably more front-heavy. That can be a plus for recoil control and a minus for maneuvering.
Try this at home with an unloaded shotgun (or a broom cut to length): walk your actual route from bedroom to the rooms you'd need to reach. If you're constantly lifting the muzzle to clear corners, go shorter.
Capacity: does it matter in a home?
Most civilian defensive encounters involve few shots, but "most" isn't "all," and a shotgun is slow to reload for anyone who hasn't practiced. Two extra shells in the tube is a real, if modest, cushion. If you pick the 6+1, consider a sidesaddle or butt-stock shell carrier so reload ammunition travels with the gun.
Why a 590 over a budget pump
If you've read our budget shotgun comparison, you know a Maverick 88 will do the job. The 590's case rests on the tang safety, a design built for hard use, and the accessory depth of the Mossberg ecosystem. If the gun is going to be your one long gun for decades, that's a reasonable place to spend.
Setting it up
Minimum setup: a weapon light (see our light guide), a sling if you'll need your hands free, and a confirmed defensive load. Federal FLITECONTROL 00 buck is a popular choice for cylinder-bore guns because the wad is designed to hold the pattern together — but pattern it in your gun before trusting it.
Federal Tactical FLITECONTROL 00 buck
2¾" · 9 pellet
Streamlight TLR-1 HL
listed at 1,000 lumens
Looking for something shorter still? The Shockwave is a legally different animal — read that before buying.
Frequently asked questions
Is the 590 better than the 500?
The 590 family is Mossberg's heavier-duty line, and its magazine tube design makes cleaning and maintenance easier. For home defense both work; the 590 is the one built with hard use in mind.
How much longer is the 9-shot?
The barrel is 1.5" longer (20" vs 18.5"), and the magazine tube runs further under it. Check each listing for exact overall length and weight.
Does the tang safety matter?
It's ambidextrous and sits under your thumb in a normal firing grip, which many shooters find faster and more intuitive than a crossbolt.
Can I shorten the barrel?
No — not without legal approval. 18" is the federal minimum for a shotgun barrel; going shorter creates a short-barreled shotgun subject to federal and state restrictions.
Keep reading
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