Why do AR pattern rifles need the buffer tube?

There are endless facts that you should know about your weapon to understand it’s working. Knowing how your firearm works and having an in-depth knowledge of its functioning can be beneficial for multiple reasons. Firearms are a very personal choice, so there is the leverage of the choice customising many parts of a weapon as per your requirement and style. You can buy buffer tube assembly parts and buffer tube kits for self-fabrication in the perfect way.

The lightweight AR patterned rifles requires extra weight to deliver optimum performance while shooting with. Buffer tubes are used for various reasons in weaponry such as the AR rifle, to reduce jerks and jolts while firing. The spring coil recoil systems assure smooth firing as well as a quitter operation. The buffer tube also helps control the bolt form bouncing. 

The extra-long buffer tube has two functions. It serves as an attachment point for the butt stock and houses the recoil buffer mechanism. The large action spring and the weighty recoil buffer within the tube are the elements that give the buffer tube its name, as they are the elements offering a buffer for the rifle bolt. 

When the rifle is ‘cocked’ by the charging handle, it is the action spring that gives the bolt a jerk, helping it slide back and forth. The weighted buffer and the spring inside the tube provide buffer against the forces of recoil, fulfilling the purpose of the ‘buffer’ tube. After each round is fired, the bolt carrier retracts back into the buffer and the action spring pushes the buffer and bolt carrier forward, loading the next cartridge as well as closing the bolt for the next shot. The characteristics and functioning of the rifle cycles can easily be altered by increasing or decreasing the weight of the buffer.
 
So pick your buffer tube wisely and with accordance to its weight and purpose, for maximum performance.