101Leafy researched the games.
Sanctioned Gunlance

Gunlance Revolver. Stresses Attack strength above Fire element.
| Class | Lance |
|---|---|
| Rarity | 6 |
| Attack | 414 |
| Fire | 250 |
| Defense | +20 |
| Slots | 2 |
| Price | 65,000z |
Upgrades
| Upgraded from | Gatling Lance+ |
|---|
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 746.