Learn more about airsoft spring guides in this instructional video from Taiwan Gun... "Spring guides stabilise the spring and affect compression consistency and gearbox durability. In this video, we cover types, it's features, and what to look for when choosing the right one. Also, we will show you how to properly install the correct spring guide and spring in different types of gearboxes. We will also show you the most common mistakes in installing springs and spring guides. Check out our newest video instruction."