Do buffer springs make a difference?

Answered by Jason Smith

Buffer springs can indeed make a difference in the functionality of your rifle. While they may look similar, they come in different lengths that can impact how your rifle operates.

One important thing to note is that most rifle and carbine buffer springs have the same diameter. This means that they can be easily interchanged between different rifles without any issues. However, the length of the buffer spring can vary.

The length of the buffer spring determines the amount of tension it places on the buffer and bolt carrier group. A longer buffer spring will exert more tension, while a shorter one will exert less. This tension affects the cycling speed and reliability of your rifle.

If you have a rifle that is overgassed, meaning it has too much gas pressure pushing the bolt carrier group back, you may want to consider using a longer buffer spring. The increased tension from the longer spring can help slow down the cycling speed and reduce the felt recoil. This can result in smoother operation and better control of your rifle.

On the other hand, if you have a rifle that is undergassed, meaning it has too little gas pressure, using a shorter buffer spring can help increase the cycling speed and reliability. The decreased tension from the shorter spring allows the bolt carrier group to move more freely, ensuring reliable extraction and ejection of spent casings.

It’s worth noting that buffer springs can wear out over time and lose their tension. If you notice any issues with the cycling or reliability of your rifle, it may be worth considering replacing the buffer spring. This simple maintenance task can often solve cycling issues and improve the performance of your rifle.

In my personal experience, I have encountered situations where changing the buffer spring has made a noticeable difference in the functionality of a rifle. For example, I once had a rifle that was overgassed and had a very harsh felt recoil. After replacing the buffer spring with a longer one, the cycling speed was reduced, resulting in a smoother shooting experience.

While buffer springs may look similar, their length can make a difference in the functionality of your rifle. Choosing the right length based on the gas system of your rifle can help optimize its cycling speed and reliability. Regular maintenance and replacement of worn-out buffer springs can also ensure optimal performance.