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45 Auto (ACP) Ammunition

The .45 ACP cartridge is a rimless, straight-walled centerfire pistol round. Known to deliver reliable firepower in combat, .45 ACP/Auto ammo was the official sidearm cartridge of the US military from its inception in 1904 through 1985 when the 9x19mm cartridge was adopted. Today, .45 ACP ammo is still favored among hunters, civilian target shooters, military collectors, and more. At GunMag Warehouse, we offer a large selection of .45 ammo at industry-leading prices. Shop our full collection today and save big on your next outdoor adventure.

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