- Best custom parts: prioritize thruster, melee damage, and ranged damage modules first
- Slot limits: every suit has its own custom part slot capacity, so plan around it
- DP spending: buy core damage and mobility parts before niche defensive modules
- Role matters: Close Combat suits want melee builds, Supports want ranged and HP parts
- Respect anti-stun: one leg armor or anti-stagger part can save you in high-cost lobbies
How the Custom Parts System Works in GBO2
Custom parts are the backbone of suit tuning in Gundam Battle Operation 2. Each mobile suit has a limited number of part slots, and every part you equip modifies stats like thruster speed, melee damage, ranged damage, HP, and stagger resistance. Because slots are scarce, the "best custom parts" are really the best priority order for your DP spending.
Parts are purchased with DP (earned from matches and missions), so a smart shopping sequence matters more than owning everything. The table below shows the part categories and what they do.
| Part Category | Primary Effect | Best For |
|---|---|---|
| Thruster | Higher flight speed and boost gauge efficiency | Nearly every suit |
| Melee Weapon | Increased melee damage output | Close Combat / Raid suits |
| Ranged Weapon | Increased ballistic or beam damage | Generals and Supports |
| HP / Armor | More effective HP, reduced stagger | Frontline and Support suits |
| Leg Armor | Slows leg-damage stumble, keeps mobility | Suits that trade fire often |
Slot limits vary by suit — a low-cost GM will never fit the same loadout as a 700-cost raid. Check the slot count on your suit's detail page before buying parts so DP isn't wasted.
Best Custom Parts Priority by Suit Role
The strongest setup depends on your suit's role. The classic triangle — Raids beat Generals, Generals beat Supports, Supports beat Raids — should guide which stats you emphasize. Use this CardGrid as your shopping list per role.
Close Combat / Raid
- Melee Weapon parts (top priority)
- Thruster for gap closing
- HP to survive counter-fire
General
- Ranged Weapon parts for rifle/bazooka pressure
- One HP or armor part
- Thruster to reposition
Support
- Ranged Weapon + HP parts
- Leg armor to hold position
- Thruster as a low priority
All core parts are purchasable with DP from the in-game shop — no gacha required for a functional loadout. Save Supply Drop pulls for suits, and buy parts directly. Event campaigns with DP boosts are the best windows to stockpile currency.
Step-by-Step: Building Your First Loadout
Finish the tutorial first
Complete the in-game tutorial to learn boosting, dodging, and melee chains. You'll earn starting DP and understand why mobility parts matter before you spend anything.
Buy one thruster part
Thruster modules improve nearly every suit and every cost bracket. This is the single highest-value first purchase for new pilots.
Add a damage part for your main suit
Match the part to your weapon: melee damage for Raid suits, ranged damage for Generals and Supports. One well-matched damage part outperforms three mismatched ones.
Fill remaining slots with survivability
HP, armor, or leg armor parts keep you in the fight. At 500+ cost lobbies, stagger resistance becomes noticeably more valuable.
Adapt per cost bracket
Low-cost (350-400) play is fast and scrappy — mobility rules. High-cost (650-700) play punishes isolated suits — survivability and anti-stun parts pay off more.
Don't spread DP across every suit you own. Pick one suit per cost bracket, fully kit it, then move on. A half-built suit loses to a fully tuned cheaper one more often than players expect.
Recommended Part Builds by Cost Band
Cost brackets change how parts perform. This table summarizes what to emphasize at each band, based on how lobbies actually play from the official game info.
| Cost Band | Playstyle | Part Priority |
|---|---|---|
| 350-400 | Fast respawns, frequent trades | Thruster, melee/ranged damage |
| 500 | Balanced mid-tier, role triangle matters | Damage part + one HP part |
| 600 | Slower, higher lethality | HP/armor, keep a damage part |
| 650-700 | Low margin for error, lethal suits | Anti-stagger, HP, damage balance |
Loadout Sanity Check Before Ranked:
- Thruster part equipped on every suit you main
- Damage part matches the suit's primary weapon type
- At least one survivability part above 600 cost
- DP reserved for parts before cosmetic or duplicate suit pulls
- Build tested in Quick Match before ranked queue
Earning DP Efficiently for Parts
Parts cost DP, and DP flows from daily play. The loop is simple: missions and events are the multiplier, matches are the base income. For a full progression breakdown, see our GBO2 leveling and farming guide.
| Income Source | Frequency | Notes |
|---|---|---|
| Daily/weekly missions | Every session | Steady DP and ticket rewards |
| Event campaigns | Limited-time | Best DP-per-match returns; watch in-game news |
| Match performance | Every match | Damage, assists, and base captures scale rewards |
| Login bonuses | Daily | Occasional free custom parts during campaigns |
DP boost campaigns announced on the official site are the most efficient windows to buy expensive parts. Stockpile currency beforehand, then spend during the event.
FAQ
Q: What are the best custom parts to buy first in Gundam Battle Operation 2?
Buy a thruster part first — it benefits every suit and every cost bracket. Follow with one damage part matched to your main suit's weapon type, then fill remaining slots with HP or armor. This priority holds from 350 cost up through 700.
Q: Do custom parts work the same on all suits?
No. Every suit has its own custom part slot limit, so the same loadout may not fit on both a 400-cost GM and a 700-cost raid. Always check slot capacity before purchasing parts for a new suit.
Q: Can I get custom parts without spending real money?
Yes. All core custom parts are purchasable with DP earned from matches, missions, and events. Gacha pulls are better saved for suits; parts are a free-to-play friendly shop category.
Q: Should I prioritize melee or ranged damage parts?
Match the part to your suit's role. Close Combat and Raid suits gain the most from melee weapon parts, while Generals and Supports get better value from ranged weapon parts. Mixing them dilutes your limited slots.