101Leafy researched the games.
Tigrex Whisker

Made of Tigrex materials, this Bow's practicality allows it to spread death.
| Class | Bow |
|---|---|
| Rarity | 6 |
| Attack | 312 |
| Affinity | -30% |
| Slots | 0 |
| Price | 25,700z |
Upgrades
| Upgraded from | Tiger Arrow II |
|---|---|
| Upgrades into | Tigrex Whisker+ |
Can also be made new at the smithy.
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 800.
Materials
Tigrex Carapace ×4, Tigrex Scale+ ×8, FireWyvrn BrnStm ×2, Wyvern Stone ×4