101Leafy researched the games.
Sonic Bow IV

A surprisingly light thunder Bow made from Hornetaur. Capable of raining arrows.
| Class | Bow |
|---|---|
| Rarity | 9 |
| Attack | 240 |
| Thunder | 180 |
| Slots | 2 |
| Price | 41,600z |
Upgrades
| Upgraded from | Sonic Bow III |
|---|
Upgrade tree from モンスターハンターポータブル 2nd G 公式ガイドブック (Enterbrain, 2008), page 798.