The Valken Airsoft BB Speed Loader is a tactical speed loader that works with most mid-cap and low-cap airsoft magazines, as well as shotgun shells, grenades, and revolvers. These BB speed loaders have a pistol magazine profile to fit in standard pistol magazine pouches. They have a translucent body allowing you to see how many BB’s remaining. The Valken airsoft clear BB speed loader is also equipped with an o-ring in the feeding channel preventing BB’s from falling out, and the agitating plunger reduces the frequency of jams and blockages. We recommend using Valken Accelerate ProMatch airsoft BB’s with our speed loaders.