This special designed adapter creates an easy way to fill your highcaps without spilling bb’s all around. No more bitching with a bottle over the high and exactly counting the amount of bb’s are loaded in your highcap. With an easy fit it slides over the in- and output tube of the Vanguard Speedloader and holds on there with the use of a magnet. Also an advantage when storing it inside the Speedloader. This product is also offered through the download tab where you can download the 3d model and make one yourself. Please ask us if you have a special magazine that requires an adaptor. We will be challenged to make it fit.