Crosman Match Grade Precision Airsoft BBs .20 grams 5,000 count. The Crosman Airsoft 5,000 ct. Bottle White Heavy Airsoft BBs are useful to have on hand during a marathon target practice session. This bulk container comes with 5,000 Airsoft BB pellets. At 0.20 grams, the BBs have a heavier weight to provide for greater impact and help improve your accuracy. The BBs are 6 millimeters in diameter and have a caliber of 0.24.