20 or 12 Gauge for Home Defense?

I’ve owned a couple of shotguns in the past but sold them both. Lately, I’ve been thinking about getting another one—because who doesn’t love that iconic ‘click-clack’ sound? I live in an apartment, so I’m considering what would work best for home defense. The last shotgun I owned was a 20-gauge with a pistol grip, and it wasn’t a pleasant shooting experience—my hand felt wrecked after just a few rounds. I’m trying to decide between a 12 or 20 gauge. For those with experience, which would you recommend, and why? Especially in a close-quarters apartment setting.

Probably a Mossberg 590 in 12 gauge with reduced-power buckshot. There are some great semi-auto options, but they cost at least twice as much as a pump action.

20 gauge is underrated. It has less recoil, and #3 buckshot is still very effective for home defense. I keep a 20 gauge 1187 as a backup because it’s easier for less experienced shooters to handle.

12 gauge offers more ammo options and is generally easier to find loads tailored for self-defense, like Federal FliteControl buckshot. I’d recommend avoiding pistol grips unless you add a stock—it’ll save your hands.

If you’re worried about over-penetration in an apartment, consider using birdshot or #4 buck for a 20 gauge. It’s effective at close range without as much risk to neighbors.

At typical home-defense distances, either gauge will get the job done. However, 12 gauge gives you more options for reduced-recoil loads if you find the standard rounds too much.

If you’re buying new, I’d go with 12 gauge. Ammo availability is far superior, and you can find low-recoil loads if recoil is a concern.

The best choice is the one you can shoot comfortably and accurately. Go with what feels right for you and your setup.

Honestly, if you’re open to options, consider a pistol-caliber carbine. A 9mm carbine might be more apartment-friendly than a shotgun and just as effective for close-quarters defense.

Check out the KSG410 if you want something lighter and easier to handle. It’s compact and perfect for apartment settings.

A 20 gauge is fine if that’s what you’re comfortable with. I’ve used both for hunting and home defense, and honestly, either one will stop a threat at close range.

Over-penetration is always a concern in an apartment. You might want to stick with #4 buckshot or even frangible rounds if available. Training and shot placement are key no matter what you choose.

If ammo availability is a concern, go with 12 gauge. It’s more versatile and generally easier to find in stores.