Sig P320 Magazines

Sig P320 magazines: factory 17 and 21-round 9mm mags, 10-round mags, .45 and .40 mags, plus extended and drum options. Ships to your door where legal.

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Buying Sig P320 Magazines online

The full-size 9mm P320 magazine holds 17 rounds and also works in compact and carry grips, extending below them. Shorter compact mags fit the smaller grips flush. The P320 uses the same magazines as the P250.

Shop P320 holsters and 9mm ammo.

Sig P320 Magazines FAQ

Do P250 magazines fit the P320?

Yes. The P320 and P250 use the same magazines in the same caliber and size.

Do full-size P320 mags fit the compact?

Yes. They lock in and extend below the compact and carry grips.

Can magazines ship to my state?

Most can. Some states and cities limit magazine capacity, and each product page lists the states it cannot ship to. Check your local laws before you order.