2.The inside diameter 13MM aluminum tube has a straighter trajectory and a more precise.
3.After you install the Short Darts Upgrade Kit which only compatible with Stefan Short darts Magazine.
4.All parts are separate,and the product included small parts, you need to install and assemble your toy,Please be careful installing the parts to avoid damage to your toy
5.Suitable for people over 14 years old,because the installation of this product requires some disassembly capacity.