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Buy 45 ACP ammo for sale now in our online Ammunition Store! This .45 caliber ammo, also known as .45 Auto, was designed for military use with the Colt .45 pistol upon its inception in 1904. The rimless, straight 45 ACP cartridge was used soon after in World War I with the US Army issued M1911 pistol.

You can purchase our .45 ACP ammo for several options of grain weights including 165 grain, 185 grain, 200 grain, and 230 grain. We additionally offer full-metal jacket and hollow point bullet types for sale.

Shop for 45 Auto ammo for sale from our large online inventory of ammunition and firearm products! We offer pistol ammo for a variety of firearms and from a selection of brands. Ammunition Store additionally offers bulk ammo, rimfire ammo, rifle ammo, shotgun ammo, and more! Browse our store now and save!