This is a 3000 round bag of KSC/KWA 6mm 0.25g Perfect BBs. This particular weight of BBs is suitable for outdoor play, where there is some wind and usually some obstructions (such as brush) between you and your target. The 0.25g BBs will hold their trajectory better against the wind, and will also be able to shoot through light brush without deflecting very much. This increased inertia comes at a small sacrifice of range, but most lighter-weight BBs shot at very long distances are not effective due to the effects of wind and obstructions.

KSC/KWA BBs are extremely high quality BBs - many of the staff at AirsoftFix are running KSC/KWA BBs in their guns, and these are also the BBs we recommend with every KWA gun that goes out.