101Leafy researched the games.
Sanctioned Gunhammer

As a result of technological advancements, this weapon has increased attack power.
| Class | Hammer |
|---|---|
| Rarity | 6 |
| Attack | 832 |
| Fire | 500 |
| Slots | 2 |
| Price | 60,000z |
Upgrades
| Upgraded from | Dead Revolver |
|---|---|
| Upgrades into | Regulation GunHammer |
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 720.