When upgrading your airsoft gun, it is important to understand the different internal parts and their function. Each component plays a crucial role in the performance and durability of the gun. Here is an overview of the most important internal parts and their differences:
Gearbox
The gearbox is the heart of most airsoft guns, especially AEGs.
- V2: Often used in AR platforms like the M4 and M16. Known for versatility and a wide range of upgrade parts.
- V3: Typically used in AK and G36 platforms. More robust than V2 and better suited for high-power setups.
- Other versions (V7, V9, etc.): Specialized gearboxes for specific weapons like sniper rifles or LMGs.
Hop-up and hop-up rubber
The hop-up system adjusts the trajectory of the bullet and affects accuracy and range.
- Hop-up rubber: Available in different hardnesses to suit different FPS levels.
- Hop-up device: Standard vs. advanced devices like TDC provide different adjustment options.
Gear
The gears determine the balance between rate of fire (ROF) and pull force (FPS).
- Standard gear (18:1): Good for all-round use.
- High-speed gear: Increases the firing rate, but requires a stronger motor.
- High-torque gear: Ideal for weapons with high FPS and powerful springs.
Spring
The spring determines the muzzle velocity (FPS) of the weapon.
- M90-M120: Standard springs for most playing styles.
- M130-M150: Used for DMR and sniper setups.
- M170+: Advanced use with high FPS requirements, requires powerful internal parts.
Cylinder and cylinder head
These parts affect the air tightness and stability of the weapon.
- Cylinder: Available in ported and non-ported versions, depending on barrel length.
- Cylinder head: Material choice such as plastic or metal can affect durability and airtightness.
Motor
The motor drives the gears and is crucial to the weapon's performance.
- High-speed motor: Increases the firing rate.
- High-torque motor: Better for weapons with heavy springs.
Electronics (MOSFET/ETU)
- MOSFET (Metal Oxide Semiconductor Field-Effect Transistor): Protects the gearbox's electrical components and provides faster trigger response.
- ETU (Electronic Trigger Unit): Advanced system that provides multiple adjustment options such as burst mode and active brake.
Advantages and disadvantages of upgrading internal parts
- Advantages:
- Improved performance, durability and precision.
- Ability to customize the weapon for specific roles such as sniper or support gunner.
- Disadvantages:
- Requires technical knowledge and correct installation.
- Higher cost of quality parts.
How do you choose the right parts?
- Assess what you want to improve (accuracy, rate of fire, FPS, etc.).
- Make sure all parts are compatible with each other and your weapon type.
- Start with basic upgrades like hop-up rubber and gears, and work your way up to more advanced components.
When should you upgrade internal parts?
If you want to improve your weapon's accuracy, range, or durability, or if you have a specific goal like high FPS or fast rate of fire, internal upgrades can make a big difference.
