A rifle buffer tube is an essential component of an AR-15 style rifle. It is a cylindrical tube made of aluminum and it houses the buffer, buffer spring, and the receiver extension. The buffer tube provides support and stability to the rear of the lower receiver and is responsible for distributing the force of the recoil, allowing the firearm to cycle consistently. The buffer tube itself is threaded, allowing for attachment of a stock, typically either collapsible or fixed. The stock gives the shooter greater control over the rifle and allows for better accuracy when shooting. On an airsoft AR-15 rifle, the buffer tube is usually where the battery is held (such as a nun chuck style battery). Additionally, many aftermarket accessories such as cheek rests, sling mounts, and butt plates can be attached to the buffer tube. This makes the AR-15 a highly customizable firearm that can be adapted to suit a variety of shooting needs. Overall, the buffer tube is an integral part of any AR-15 style rifle and its function should not be overlooked.