101Leafy researched the games.
Bronze Bell

Forged under the guidance of ancient texts. Heavy, those hit by it won't last long.
| Class | Hunting Horn |
|---|---|
| Rarity | 5 |
| Attack | 936 |
| Defense | +24 |
| Slots | 1 |
| Price | 35,000z |
Upgrades
| Upgraded from | Anvil Hammer |
|---|---|
| Upgrades into | Gaoren Bell |
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 734.
Materials
Gaoren Pincer ×2, Gaoren Shell ×6, Gaoren Spine ×2, Iron Ore ×20