What Caliber is AR-15?

When it comes to the AR-15, one of the most popular firearms in the United States, the question of its caliber is often asked. The AR-15 is available in various calibers, each with its own unique characteristics and applications. In this article, we will delve into the different calibers available for the AR-15, their pros and cons, and how they compare to one another.

Caliber Options for AR-15

what caliber is ar 15,What Caliber is AR-15?

The AR-15 is available in several calibers, with the most common ones being .223 Remington, 5.56x45mm NATO, .308 Winchester, and .300 Blackout. Let’s take a closer look at each of these calibers and their specifications.

Caliber Cartridge Typical Bullet Weight Typical Bullet Velocity
.223 Remington 5.56x45mm NATO 55 grains 3,200 fps
5.56x45mm NATO 5.56x45mm NATO 55 grains 3,200 fps
.308 Winchester .308 Winchester 150 grains 2,700 fps
.300 Blackout 7.62x35mm 125 grains 2,200 fps

The .223 Remington and 5.56x45mm NATO are essentially the same cartridge, with the latter being the NATO standard. The .308 Winchester is a larger caliber, offering more power and range. The .300 Blackout is a relatively new cartridge that offers a balance between the .223 and .308 calibers.

Pros and Cons of Each Caliber

.223 Remington/5.56x45mm NATO:

Pros:

  • Lightweight and compact firearms
  • High magazine capacity
  • Excellent for varmint hunting and target shooting

Cons:

  • Less powerful than larger calibers
  • Not suitable for larger game hunting

.308 Winchester:

Pros:

  • More powerful and offers greater stopping power
  • Excellent for hunting larger game
  • Good for long-range shooting

Cons:

  • Heavier and bulkier firearms
  • Lower magazine capacity

.300 Blackout:

Pros:

  • Combines the benefits of both .223 and .308 calibers
  • Excellent for hunting and tactical applications
  • Can use a wider variety of ammunition types

Cons:

  • Relatively new caliber, so less widespread availability of ammunition and accessories

Choosing the Right Caliber for Your Needs

When selecting the right caliber for your AR-15, consider the following factors:

  • Your intended use: Are you looking for a firearm for hunting, self-defense, or recreational shooting?
  • The type of game or target you plan to hunt or shoot: Larger game may require a more powerful caliber.
  • The weight and size of the firearm: Heavier and bulkier firearms may be more challenging to carry and handle.
  • The availability of ammunition and accessories: Ensure that you can easily find the ammunition and accessories you need for your chosen caliber.

In conclusion, the AR-15 is available in various calibers, each with its own strengths and weaknesses. By considering your needs