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Shop online with us for great deals on 45 ACP ammo from Freedom Munitions, Federal, PMC Ammunition, and other top brands. It's hard to come up with a more iconic American handgun cartridge than the .45 ACP (Automatic Colt Pistol) invented by John Moses Browning in 1904. After successful military trials, it was adopted as the standard chambering for Colt's M1911 pistol. There are still countless handguns in current production that use 45 ACP ammo, including many variations on the original 1911 blueprint. There are also carbine rifles that are chambered for the 45 caliber ACP round, like the overwhelmingly popular AR platform. Putting 45 auto ammo through a rifle has the advantage of longer accuracy and reduces felt recoil down to next-to-nothing compared to a pistol.![]()
Is There a Difference Between 45 and 45 ACP?
Although not the only 45 round, .45 ACP ammo is definitely the most popular caliber in this size. If you're curious about 45 auto vs 45 ACP, it's actually the same thing. However, 45 Colt ammo is an entirely different caliber, most often referred to as .45 Long Colt or .45LC, and cannot be used in the same guns. Check out our 45 ACP Ammo Guide to learn more about its history and uses.
Is 45 ACP Stronger Than 9mm?
45 ACP vs. 9mm ammo is a popular debate. In terms of pure stopping power, the 45 ACP bullet is larger and heavier than 9mm, creating a bigger wound channel. Overall, 45 Auto ammo and 9mm hollow points are both great self-defense rounds. 45 ACP is better suited for home defense because it is incredibly powerful and has a reduced chance of over-penetrating your target. 9mm rounds may be better for concealed carry, since 9mm handguns typically offer magazines with a larger capacity than 45 Auto and have more manageable recoil.
Buy 45 ACP Ammo Online at OpticsPlanet
Here at OpticsPlanet, we carry a wide selection of ammunition, including handgun ammo like 45 ACP rounds. If you're looking for .45 ACP rounds for sale, including bulk 45 ACP ammo, you've come to the right place! You can use the handy search filters to narrow the results by round count, bullet type and weight, case material, and more to find the perfect ammunition for your needs.
At OpticsPlanet, we're proud to offer a huge selection of quality products at low prices. You can always learn more about our products and get handy tips and tricks by looking over our How-To Guides and Articles.
194 Products in 45 ACP Ammunition
- Caliber: .45 ACP
- Number of Rounds: 50, 250, 500
- Bullet Type: Round Nose (RN)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
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- Caliber: .45 ACP
- Number of Rounds: 50, 250, 500
- Bullet Type: Round Nose (RN)
- Bullet Weight: 200 grain
- Cartridge Case Material: Brass
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- Caliber: .45 ACP
- Number of Rounds: 50
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
Best Rated Product
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- Caliber: .45 ACP
- Number of Rounds: 50
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 250
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 50, 500
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 50
- Bullet Type: Full Metal Jacket Semi Wadcutter (FMJSWC)
- Bullet Weight: 185 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 50
- Bullet Type: Frangible
- Bullet Weight: 155 grain
- Cartridge Case Material: Brass
Best Rated Product
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- Caliber: .45 ACP
- Number of Rounds: 50
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
Seasonal Promotion
Eligible models will have a savings offer and the coupon code to use below. Add the item to your cart and enter the coupon for savings on that select model!
- Caliber: .45 ACP
- Number of Rounds: 50
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 50
- Bullet Type: Frangible
- Bullet Weight: 155 grain
- Cartridge Case Material: Brass
Earn up to $200 on Remington Defensive Ammo! Must Buy 2 or More!
Get a 20% rebate when this product is purchased by September 1st, 2026 and the rebate form is postmarked by September 30th, 2026. Download the rebate form or see details
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- Caliber: .45 ACP
- Number of Rounds: 20
- Bullet Type: Brass-Jacketed Hollow Point (B-JHP)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
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- Caliber: .45 ACP
- Number of Rounds: 50
- Bullet Type: Round Nose (RN)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
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- Caliber: .45 ACP
- Number of Rounds: 50, 500
- Bullet Type: Hollow Point (HP)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
Earn up to $200 back on Federal Defensive Ammunition! Must Buy 2 or More Boxes
Get a 20% rebate when this product is purchased by September 1st, 2026 and the rebate form is postmarked by September 30th, 2026. Download the rebate form or see details
- Caliber: .45 ACP +P
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
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- Caliber: .45 ACP +P
- Number of Rounds: 20
- Bullet Type: Solid Copper
- Bullet Weight: 165 grain
- Cartridge Case Material: Brass
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- Caliber: .45 ACP
- Number of Rounds: 25
- Bullet Type: TAC-EX-Blue
- Bullet Weight: 165 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 20, 50
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 230 grain
- Cartridge Case Material: Nickel Plated Brass
- Caliber: .45 ACP
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 230 grain
- Cartridge Case Material: Nickel Plated Brass
Earn up to $200 back on Federal Defensive Ammunition! Must Buy 2 or More Boxes
Get a 20% rebate when this product is purchased by September 1st, 2026 and the rebate form is postmarked by September 30th, 2026. Download the rebate form or see details
- Caliber: .45 ACP
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 50
- Bullet Type: Round Nose (RN)
- Bullet Weight: 250 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 20, 50
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 185 grain
- Cartridge Case Material: Brass
This item is currently on sale and has a new, lower price! See more items on sale
- Caliber: .45 ACP
- Number of Rounds: 50
- Bullet Type: Total Synthetic Jacket (TSJ)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
Best Rated Product
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- Caliber: .45 ACP
- Number of Rounds: 20
- Bullet Type: Spitzer
- Bullet Weight: 185 grain
- Cartridge Case Material: Brass
Seasonal Promotion
Eligible models will have a savings offer and the coupon code to use below. Add the item to your cart and enter the coupon for savings on that select model!
- Caliber: .45 ACP
- Number of Rounds: 20
- Bullet Type: Hollow Point Frangible (HPF)
- Bullet Weight: 155 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 50
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 185 grain
- Cartridge Case Material: Brass
Seasonal Promotion
Eligible models will have a savings offer and the coupon code to use below. Add the item to your cart and enter the coupon for savings on that select model!
Best Rated Product
Our customers have spoken – this is one of the best rated products in the Ammunition category! See more best rated Ammunition products
- Caliber: .45 ACP
- Number of Rounds: 20, 50
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 300
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 20
- Bullet Type: Monolithic
- Bullet Weight: 135 grain
- Cartridge Case Material: Nickel Plated Brass
- Caliber: .45 ACP
- Number of Rounds: 20
- Bullet Type: Full Metal Jacket Flat Nose (FMJFN)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP +P
- Number of Rounds: 20
- Bullet Type: Hollow Point (HP)
- Bullet Weight: 185 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 230 grain
- Cartridge Case Material: Nickel Plated Brass
- Caliber: .45 ACP +P
- Number of Rounds: 20
- Bullet Type: Hard Cast Flat Nose (HCFN)
- Bullet Weight: 255 grain
- Cartridge Case Material: Nickel Plated Brass
- Caliber: .45 ACP
- Number of Rounds: 20
- Bullet Type: Hollow Point (HP)
- Bullet Weight: 105 grain
- Cartridge Case Material: Nickel Plated Brass
This item is currently on sale and has a new, lower price! See more items on sale
- Caliber: .45 ACP +P
- Number of Rounds: 20
- Bullet Type: Hollow Point (HP)
- Bullet Weight: 200 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP +P
- Number of Rounds: 20
- Bullet Type: Monolithic
- Bullet Weight: 135 grain
- Cartridge Case Material: Nickel Plated Brass
- Caliber: .45 ACP +P
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP +P
- Number of Rounds: 50
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 230 grain
- Cartridge Case Material: Nickel Plated Brass
- Caliber: .45 ACP
- Number of Rounds: 50
- Bullet Type: Hollow Point (HP)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP +P
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 185 grain
- Cartridge Case Material: Nickel Plated Brass
- Caliber: .45 ACP
- Number of Rounds: 10
- Bullet Type: Shotshell
- Bullet Weight: 120 grain
- Cartridge Case Material: Aluminum
- Caliber: .45 ACP +P
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 230 grain
- Cartridge Case Material: Nickel Plated Brass
Earn up to $200 back on Federal Defensive Ammunition! Must Buy 2 or More Boxes
Get a 20% rebate when this product is purchased by September 1st, 2026 and the rebate form is postmarked by September 30th, 2026. Download the rebate form or see details
- Caliber: .45 ACP
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
Best Rated Product
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- Caliber: .45 ACP +P
- Number of Rounds: 20
- Bullet Type: Hollow Point (HP)
- Bullet Weight: 78 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 500
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 400
- Bullet Type: Semi Wadcutter (SWC)
- Bullet Weight: 200 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 20
- Bullet Type: Shot Capsule
- Cartridge Case Material: Brass
- Application: Target
Best Rated Product
Our customers have spoken – this is one of the best rated products in the Ammunition category! See more best rated Ammunition products
- Caliber: .45 ACP
- Number of Rounds: 100, 250, 500
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 300
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 20
- Bullet Type: Fluid Transfer Monolithic (FTM)
- Bullet Weight: 135 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP +P
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 220 grain
- Cartridge Case Material: Nickel Plated Brass
Earn 20% Back on Federal Handgun Ammo! Must Buy Two or More!
Get a 20% rebate when this product is purchased by November 30th, 2026 and the rebate form is postmarked by December 31st, 2026. Download the rebate form or see details
- Caliber: .45 ACP +P
- Number of Rounds: 20
- Bullet Type: Solid
- Bullet Weight: 240 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP +P
- Number of Rounds: 20
- Bullet Type: Monolithic
- Bullet Weight: 200 grain
- Cartridge Case Material: Nickel Plated Brass
Best Rated Product
Our customers have spoken – this is one of the best rated products in the Ammunition category! See more best rated Ammunition products
- Caliber: .45 ACP
- Number of Rounds: 50, 100, 200 and 1 more
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 50
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
Best Rated Product
Our customers have spoken – this is one of the best rated products in the Ammunition category! See more best rated Ammunition products
- Caliber: .45 ACP
- Number of Rounds: 50, 200
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 50, 100
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass
- Caliber: .45 ACP
- Number of Rounds: 100
- Bullet Type: Total Synthetic Jacket (TSJ)
- Bullet Weight: 230 grain
- Cartridge Case Material: Brass