High quality BBs from Excel of Japan. Super smooth and super round for reliable use in AEGs and GBBs. Comes in pack of 3700 rounds. Please note that Excel have a typical actual size of 5.91 mm, while most other brands are 5.95 mm. This can affect the operation in some models that feed from a double row (like the KSC M11 and similar models).
Get a BB bottle to store and carry these BBs with you into battle so that you can reload as needed. An auto-loader will also make loading BB's into standard AEG magazines much easier.