Weapon billets in Genshin Impact are foundational crafting materials required to forge 4-star weapons at blacksmiths across Teyvat. If you're trying to craft reliable gear without relying entirely on gacha banner luck, securing these items is essential. Unlike common ores or enemy drops, billets cannot be easily farmed in the open world, making knowing their precise drop sources vital for progression.
The primary and most consistent sources for weapon billets are weekly boss domains, Trounce Domains, and specific regional souvenir shops. Defeating weekly bosses such as Dvalin, Andrius, Childe, Azhdaha, La Signora, Raiden Shogun, and subsequent regional bosses offers a chance at weapon billets corresponding to that region. Additionally, players can trade specific regional tokens (such as Anemo Sigils, Geo Sigils, Electro Sigils, Hydro Sigils, Dendro Sigils, and Pyro Sigils) at regional souvenir shops for one-time billet purchases.
Weekly Boss Drop Mechanics and Rates
Weekly Trounce Domains are your recurring ticket to earning weapon billets. Each boss has a weekly resin cost of 30 for your first three discounted weekly boss clears, or 60 resin per run thereafter.
- Boss Rotation: You can challenge any unlocked weekly boss once per week. While you can fight every boss available in the game each week, only the first three boss claims benefit from the discounted resin cost.
- Drop Rates: Weapon billets have a notoriously low drop rate, roughly estimated between 12% and 15% across all weekly bosses.
- Dream Solvent Conversion: If you drop a weapon billet type you don't need—such as a Northlander Bow Billet when you need a Catalyst Billet—you can use Dream Solvent at an Alchemy Bench to convert billets of the same weapon category (Northlander to Northlander, or Midlander to Midlander) into the desired type. Dream Solvent drops from weekly bosses as well.
For official details on updates and game mechanics, check out the Genshin Impact Official Website.
Regional Souvenir Shops and Sigil Trading
If you aren't getting lucky with weekly boss drops, regional souvenir shops offer guaranteed, one-time billet purchases using exploration sigils.
- Mondstadt (Sigils of Sigils / Souvenir Shop): Run by Marjorie in the city of Mondstadt, trading Anemo Sigils allows you to purchase standard Northlander billets.
- Liyue Harbor: Managed by Xingxi at Mingxing Jewelry, Geo Sigils can be traded for Northlander billets.
- Inazuma, Sumeru, Fontaine, and Natlan: Each respective nation's local tree offering system (like the Sacred Sakura's Favor, the Tree of Dreams, or the Lucine Fountain) or regional souvenir shop provides guaranteed billets as level-up rewards or direct purchases using regional sigils gathered from chests and world exploration.
Clearing world exploration objectives pays off significantly here. Opening chests and completing puzzles rewards sigils that directly bypass the RNG of weekly bosses.
World Quests and Special Event Rewards
HoYoverse frequently distributes weapon billets through major event rewards and specific world quests.
- World Quests: Long quest chains in regions like Sumeru and Fontaine often reward a midlander or northlander billet upon final completion. Always check quest logs for rewards tagged with weapon forging materials.
- Limited-Time Events: Major patches often feature event shops where you can exchange event currency for a specific weapon billet choice box. Participating in these events is the fastest way to secure refinement ranks for craftable 4-star weapons.
To track upcoming event schedules and official community events, visit the HoYoLAB Community Platform.
Best Craftable Weapons to Prioritize
Once you've secured your billets, knowing which weapons to forge saves you from wasting rare materials.
- Iron Sting (Sword): Excellent for elemental mastery scaling characters like Kazuha or Kuki Shinobu.
- Prototype Crescent (Bow): A solid free-to-play option for main DPS archers like Ganyu.
- Amenoma Kageuchi (Sword): Exceptional energy recharge passive for characters like Kamisato Ayaka or Jean.
- King's Squire or Sapwood Blade: Great utility weapons for Dendro reaction teams.
Frequently Asked Questions
Can you farm weapon billets every day?
No. Weekly boss domains can only be looted for rewards once per week per boss. You cannot grind them daily for infinite billet drops.
What is the difference between Northlander and Midlander billets?
Northlander billets are used for weapons from Mondstadt, Liyue, and Inazuma. Midlander billets are used for weapons crafted in Sumeru, Fontaine, and Natlan. They are not cross-compatible at the alchemy bench.
How do I get more Dream Solvent?
Dream Solvent drops exclusively as a random reward from defeating weekly Trounce Domain bosses. Running your three discounted weekly bosses every Monday is the best way to stock up.
Are craftable weapons better than 5-star gacha weapons?
Generally, 5-star weapons and limited gacha 4-star weapons outperform craftable options. However, fully refined (R5) craftable weapons often rival base-level 5-star gear, making them incredible value for free-to-play accounts.
