101Leafy researched the games.
WanningMoonDarklance

Gunlance of the darkest night. The black blades hide the gun well. Shelling Lv4
| Class | Gunlance |
|---|---|
| Rarity | 10 |
| Attack | 552 |
| Affinity | 40% |
| Slots | 2 |
| Price | 120,000z |
Upgrades
| Upgraded from | Hidden Gunlance |
|---|
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 760.
Materials
LeatherNargaTail ×4, ThickNargaScale ×10, HvnlyNargaScale ×1, LeathrTigrexTail ×2