101Leafy researched the games.
Imperial Gunlance

Approved by the Guild for those wishing to raise their Shelling level. Shelling Lv3
| Class | Gunlance |
|---|---|
| Rarity | 4 |
| Attack | 391 |
| Slots | 2 |
| Price | 5,600z |
Upgrades
| Upgraded from | Special Ops Gunlance |
|---|---|
| Upgrades into | Silver Rook |
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 756.