弾 is the Japanese shinjitai (simplified) form of the character written 弹 in Mainland Chinese and 彈 in traditional Chinese. It is not used in Chinese writing — only in Japanese and old printing. The Chinese character 弹 is also read tán (to pluck, to flick).
register
Japanese variant only — appears in etymology notes and Japanese text, not in modern Chinese.
The 弓 (bow) radical on the left carries the meaning: the character first meant a pellet shot from a bow, later a bullet. Same radical and sense as the Chinese form 弹.
phonetic
単dān
single (Japanese form of 单)
The right side is the Japanese form of 单, the sound element, drifting from dān to dàn. The Chinese character uses the fuller 单 in the same role; it contributes no meaning here.
No stroke data for 弾; the glyph shown is your device font, so component strokes can't be highlighted.
