MAddog M4 Mag Style Airsoft Speed Loader Maddog Speed Loader fills about 4 Mid cap mags in one fill Works with most Airsoft AEG and pistol magazines. Design fits in most mag pouches so your ready on the field Holds Approximately 470 rounds and includes the magazine fill adapter Easy feed fill door for loading from bulk bb's Don't waste your money on those puny 100 rd speed loaders