.45 Gap Vs .45 Acp Review: Which Is Better?

.45 Gap Vs .45 Acp Review: Which Is Better?
45 ACP vs 45 GAP What's the Difference & Which Is For You? from www.ammoforsale.com


When it comes to choosing the right ammunition for your firearm, there are many factors to consider. Two popular options for handguns are the .45 GAP and .45 ACP. In this review, we will compare these two calibers and determine which one is better suited for your needs.

What is .45 GAP?

The .45 GAP, or Glock Automatic Pistol, was developed by Glock in 2003 as an alternative to the .45 ACP. It was designed to have the same stopping power as the .45 ACP but in a cartridge that could fit into a more compact handgun.

What is .45 ACP?

The .45 ACP, or Automatic Colt Pistol, has been a popular choice for over a century. It was developed by John Browning in 1904 for use in the Colt Model 1911 pistol. The .45 ACP is known for its stopping power and reliability.

Ballistics Comparison

When comparing the ballistics of the .45 GAP and .45 ACP, there are some notable differences. The .45 GAP typically has a higher velocity and flatter trajectory compared to the .45 ACP. However, the .45 ACP generally has a larger bullet weight, which can result in greater energy transfer upon impact.

Stopping Power

Both the .45 GAP and .45 ACP are known for their stopping power. The larger bullet diameter and heavier bullet weight of the .45 ACP can provide a greater stopping power compared to the .45 GAP. However, the .45 GAP’s higher velocity can compensate for its smaller bullet size.

Ammo Availability

When it comes to ammo availability, the .45 ACP has a significant advantage. It has been around for over a century and is widely used by law enforcement and civilians. The .45 GAP, on the other hand, has limited availability and fewer options for ammunition.

Firearm Compatibility

The .45 ACP is compatible with a wide range of handguns, including the iconic Colt 1911. On the other hand, the .45 GAP is primarily designed for use in Glock handguns. If you already own a Glock pistol, the .45 GAP may be a suitable choice. However, if you prefer other handgun brands, the .45 ACP offers more versatility.


Recoil is an important factor to consider, especially for those who are new to shooting or have limited hand strength. The .45 GAP typically has a snappier recoil compared to the .45 ACP due to its higher velocity. The .45 ACP, with its larger bullet weight, can provide a more manageable recoil.


When it comes to cost, the .45 ACP is generally more affordable compared to the .45 GAP. The .45 ACP has been around for a long time and is produced by many ammunition manufacturers, resulting in a wider range of options and competitive pricing.


Both the .45 GAP and .45 ACP have their pros and cons. The .45 GAP offers a more compact option with higher velocity, while the .45 ACP provides greater stopping power and wider ammunition availability. Consider your specific needs, such as firearm compatibility, recoil tolerance, and budget, to make an informed decision.


1. Can I use .45 GAP ammunition in a .45 ACP handgun?

No, .45 GAP ammunition is not compatible with .45 ACP handguns. The cartridges have different dimensions and are not interchangeable.

2. Which caliber is better for self-defense?

Both the .45 GAP and .45 ACP are suitable for self-defense. The .45 ACP’s larger bullet size and greater stopping power may provide an advantage, but the .45 GAP’s higher velocity can compensate for its smaller bullet size.

3. Is the .45 GAP more accurate than the .45 ACP?

The accuracy of a handgun depends on various factors, including the firearm itself, the shooter’s skills, and the ammunition used. Generally, there is no significant difference in accuracy between the .45 GAP and .45 ACP.

4. Can I convert a Glock handgun from .45 GAP to .45 ACP?

Some Glock models can be converted from .45 GAP to .45 ACP by simply swapping out the barrel and magazine. However, it is important to consult with a qualified gunsmith to ensure proper installation and functionality.

5. Are there any other calibers similar to .45 GAP and .45 ACP?

Yes, there are other calibers similar to .45 GAP and .45 ACP, such as the .40 S&W and 10mm Auto. These calibers offer different characteristics and may be worth considering based on your specific needs.

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