Abstract digital art comparing AR-15 and AR-308 rifles through geometric shapes and color schemes.

Home » Articles » AR-15 » AR-15 vs. AR-308: Understanding the Differences

AR-15 vs. AR-308: Understanding the Differences

AR-15, AR-308

The AR-15 and AR-308 are two popular firearms that share a common design heritage but are designed for different purposes. This article will help you understand the key differences between these two platforms.

Caliber and Power – AR-15 and AR-308

One of the most significant differences between both rifles is the caliber of ammunition they use. The AR-15 is typically chambered in .223 Remington or 5.56 NATO, which are relatively light rounds suitable for varmint hunting or self-defense. On the other hand, the AR-308 is chambered in .308 Winchester or 7.62 NATO, which are larger and more powerful rounds suitable for big game hunting or long-range shooting.

Size and Weight

Due to the larger caliber, the AR-308 is generally larger and heavier than the AR-15. This can make the AR-308 more challenging to handle, especially for smaller shooters or those with limited strength. However, the increased weight can also help to absorb recoil, making the AR-308 more comfortable to shoot.


Both are highly customizable platforms. They both feature a modular design that allows for easy swapping of parts and accessories. However, due to its popularity, there are more aftermarket parts and accessories available for the AR-15, giving you more options for customization.


Generally speaking, the AR-308 is more expensive than the AR-15. This is due to the larger size and more powerful caliber, which require more materials and more complex manufacturing processes. Additionally, .308 ammunition is typically more expensive than .223 or 5.56 ammunition.

In conclusion, they are both excellent firearms that offer a range of capabilities. The best choice between the two depends on your specific needs and preferences. Whether you prioritize power, size, customization, or cost, there’s an AR platform out there that’s perfect for you.

Learn which rifle suits your needs for precision, power, and utility in our guide!

Leave a Reply

Your email address will not be published. Required fields are marked *

Fill out this field
Fill out this field
Please enter a valid email address.