Arknights: Endfield, the groundbreaking 3D open-world RPG sequel to Arknights, launched on January 22, 2026, and has players hooked with its dynamic combat, AIC base-building, and deep progression systems on Talos-II. As the administrator, upgrading weapons is essential for boosting operator damage output, unlocking powerful skills, and conquering Landbreakers.
From accessing the menu to farming Arms INSP Kits, tuning at Lv20/40/60/80, maxing potential with duplicates, and socketing essences for skill boosts—we cover step-by-step instructions, material lists, farming spots, pitfalls, and pro tips. Master Arknights Endfield weapon enhancements to dominate Protocol Space missions and endgame content. Let’s forge your arsenal!
Arknights Endfield Weapon System Overview
In Arknights Endfield, weapons are operator-specific (5 types: Sword, Greatsword, Polearm, Handcannon, and Arts Unit) and separate from gear like armor. Each weapon features:
- Base Stats: Primarily ATK, scaling with levels.
- 3 Skills: 1. Attribute buff (e.g., Strength), 2. Secondary stat (e.g., Crit Rate), 3. Unique conditional effect (absent on 3★).
- Progression Layers: Leveling (stats), Tuning (caps/skills), Potential (final skill ranks), and Essences (skill enhancements).
Upgrading weapons via Arsenal Exchange pulls, exploration chests, or shops directly amps combat. Higher rarity (up to 6★) yields better base ATK and skills. Max Lv99, but tune at caps (20/40/60/80). Essences add flexible bonuses from enemy drops.
Prioritize DPS operators’ weapons first—ATK gains compound with combos and ultimates.
Prerequisites for Weapon Upgrades in Arknights Enfield
- Complete the prologue: Beat Ereignis in “Process: Cold Start” to unlock the OMV Dijiang hub and basic AIC.
- Valley Reboot: Deploy PAC in Valley IV Hub for AIC trading/materials.
- Authority Level 10+: Unlocks advanced Protocol Space for farming.
- Gather Basics: Stock T-Creds (story rewards) and early Arms Inspectors from quests/chests.
No heavy grinding needed early—focus on the story for 135 free pulls (weapons/operators).
EnfieldStep-by-Step: How to Upgrade Weapons in Arknights Endfield
1. Access the Weapon Upgrade Menu
- Open Operator Overview (menu icon).
- Tab to Weapons.
- skills, andSelect the equipped weapon—view stats, skills, EXP bar.
- Tabs: Level Up (+), Tune, Potential, Essence Infusion.
2. Leveling Weapons (Boost Base ATK)
- Feed Weapon EXP Materials: Material EXP Value Arms Inspector 200 Arms INSP Kit 1,000 Arms, INSP Set 10,000
- Or sacrifice weapons (3★=500 EXP, 4★=1,500, 5★=10k, 6★=30k + refunds invested EXP/T-Creds).
- Hit Level Up—each level has a fixed ATK (e.g., +6).
- Caps: Stop at Lv20/40/60/80 without tuning. Overflow EXP refunds as materials.
Cumulative Costs (from Lv1):
| Level | EXP | T-Creds |
|---|---|---|
| 20 | 8,890 | 640 |
| 40 | 105,540 | 10,400 |
| 60 | 290,540 | 29,010 |
| 80 | 841,340 | 132,410 |
| 99 | 2,559,740 | 873,010 |
3. Tuning Weapons (Raise Caps & Skills)
- At cap: Select the Tune tab.
- Costs specific materials (same for all weapons): Tune Stage Materials Lv20 Cap 5x Cast Die, 3x 18x Heavy Cast Die, 5x Auronyx Lv60 20x Heavy Cast Die, 5x 80x Heavy Cast Die, 8x Wulingstone
- Improves skills and raises cap. Max Lv99 post-Lv80.
4. Potential Upgrades (Max Final Skill)
- Potential tab: Feed duplicates (1:1 transfer) or protocolized patterns.
- 6 stages (0-5): Each +1 base/max rank to 3rd skill (4→9 max).
- 6★ visual change on max.
5. Infuse Essences (Skill Boosts)
- Essence tab: Socket weapon-type specific essences (removable/transferable).
- Matches boost skill levels (preview first). 5★=3 stats best.
- Enhance Essences: Use Essence Dust (dismantle extras). Success rates: Lv Success % Dust Cost 1→260% 302→324% 603→410.9% 1204→55% 2505→62.7% 450
Weapon Upgrade Materials: Sources & Farming Guide
EXP Materials: Quests, chests, Protocol Space, AIC trade.
Tuning Ores:
- Kalkonyx: The Hub (west Woodland Fringes ridge, west processing center); Originium Science Park (north Research Center, south Kohl Plant). Destroy veins, respawn.
- Auronyx: Origin Lodespring (east/south logistic area).
- Umbronyx: Jingyu Valley (Ch2 start).
- Wulingstone: Wuling City quests/exploration.
- Cast/Heavy Cast Die: Quests, Protocol Space, AIC.
Essences: Severe Energy Alluvium dungeons (stamina-based). Bosses drop pools (e.g., Axe Armorbeast: Agility/ATK/Assault). Use solvers like endfieldtools.dev for matches.
How to Promote Your Characters and Tune Your Weapons in Arknights …
Common Mistakes & Troubleshooting in Arknights Endfield Weapon Upgrades
- Feeding Good Weapons for EXP: Only scrap junk—refunds wasted on tuned ones.
- Ignoring Tuning: Hoard EXP uselessly; farm ores early.
- Wrong Essences: Match weapon type/skills—use preview/solvers.
- Early Potential: Save duplicates for endgame keepers.
- No T-Creds: Story/Protocol first.
- Overflow? Auto-refunds.
Advanced Tips for Optimal Arknights: Endfield Weapon Builds
- Priority: Level/Tune core team weapons to 40. DPS: ATK/Crit essences. Supports: HP/Treatment.
- Best Early Weapons: 4★ from chests (e.g., Pathfinder’s Beacon Polearm). Pull 6★ like Sundered Prince.
- AIC Synergy: Blueprint factories for dies/ores offline.
- Essence Solver: endfieldtools.dev—filters 100% matches.
- Reroll Dupes: Transfer potential freely.
- Endgame: Max potential 6★ + Lv6 essences for +200% ATK spikes.
Rewards & Next Steps After Weapon Upgrades
Strong weapons unlock higher protocol clears, better AIC yields, and gacha certs. Post-upgrades: Farm Algorithmic Memories for Targeted Supplies, pull banners.
| Upgrade Milestone | Key Benefit |
|---|---|
| Lv40 Tune | Mid-game viable ATK |
| Potential 5 | 3rd skill maxed |
| Full Essences | Skill ranks +9 |
Next: Gear artificing, operator promotions.
Conclusion: Forge Unstoppable Weapons in Arknights Enfield
Mastering Arknights Endfield weapon upgrades—leveling with Arms INSP Kits, tuning ores, potential dupes, and essence infusions—transform your squad into Talos-II titans. Follow this guide for efficient progression, dodge pitfalls, and dominate. Drop your best builds below!
