In Armored Core 6, the Core Part is a crucial component when constructing your AC (Armored Core) machines. These Core Parts come in various varieties, each with its unique stats, strengths, and weaknesses. However, many players tend to select Core Parts based on aesthetics rather than function, and there’s nothing inherently wrong with that – it’s all about personal preference.
For those who aim to optimize their ACs for peak performance, choosing the right Core Part is paramount. Some Core Parts are tailored for specific build types, while others provide a range of defensive capabilities, influencing how your AC performs on the battlefield. Let’s take a closer look at some of the top Core Parts suited for various playstyles in Armored Core 6.

DF-BD-08 Tian Qiang
During the early to mid-stages of your first playthrough, the DF-BD-08 Tian Qiang Core Part shines as an excellent choice. It boasts exceptional defensive statistics and impressive Attitude Stability, enabling your AC to endure considerable damage. However, its notable drawback is its weight, making it one of the heaviest Core Parts available. While early-level Leg Parts can support this Core, they limit your weapon options and reduce your AC’s mobility.
VE-40A
For players seeking maximum Armor Points (AP) in their Core Part, the VE-40A is the ideal choice. Manufactured by Arquebus Corp, it offers the highest AP available for first playthroughs and features strong overall defensive stats. Moreover, its Generator Output Adjustment is praiseworthy for a heavyweight Core Part, granting more flexibility in Energy-based weapon selection. The VE-40A also provides excellent Attitude Stability, enhancing your AC’s resistance to stagger. Nevertheless, its weight necessitates careful consideration of your armament choices, especially if you’re not using the Weight Control OS Tuning perk.
Nachtreiher/40E
Lightweight ACs are popular among players who prefer agility and speed on the battlefield. The Nachtreiher/40E Core Part excels in this regard, boasting the highest Booster Efficiency Adjustment stat. When paired with Quick Booster-focused Boosters, your AC will zip through missions and skirmishes with ease. While its defensive stats are passable, this Core Part is designed for lightweight ACs, limiting your weapon options. Combining it with Reverse Joint Leg Parts further enhances your AC’s mobility and evasiveness.
IA-C01C: Ephemera
The Ephemera Core Part is a top choice for Energy Weapons-focused builds. It offers outstanding Generator Output Adjustment stats, making it perfect for Laser or Plasma-based armaments, which can unleash devastating firepower. While it falls within the middleweight-to-heavyweight category in terms of weight, it also provides decent defensive capabilities, especially against Energy-based attacks. However, its subpar Attitude Stability requires players to manage their Energy effectively while balancing weapon usage and evading enemy fire.
07-061 Mind Alpha
Once you’ve reached the halfway point of your first playthrough, the 07-061 Mind Alpha Core Part becomes accessible. This Core Part is renowned for its balanced attributes, bolstering AC builds seeking well-rounded defensive stats. Despite its substantial weight, its impressive Generator Output and Supply Adjustment stats allow ACs equipped with this Core Part to maintain mobility and consistent Energy Weapon performance with effective Energy management.
CS-5000 Main Dish
If you desire a “Damage Sponge” build that can absorb punishment, look no further than the CS-5000 Main Dish Core Part. It boasts exceptional defensive stats and holds the highest Attitude Stability among all Core Parts in the game. ACs equipped with this Core Part are challenging to stagger and equally challenging to defeat. However, as with most high-defense builds, mobility is sacrificed due to its heavyweight. Effective energy management is crucial, although the Core Part does offer decent Generator Supply Adjustment.

In Armored Core 6, the choice of Core Part significantly impacts your AC’s performance. Whether you prioritize defense, mobility, or firepower, there’s a Core Part suited to your playstyle. Select wisely to create a formidable AC that suits your preferences and strategy on the battlefield.