G&G ARP9 / ARP556 Upgrade List
There are many potential upgrades that can be done to the G&G ARP 9 / ARP 556 airsoft gun to enhance its performance and customize its look. Here are some popular upgrades that you may want to consider:
Accuracy Upgrade
- Inner Barrel: Upgrading the inner barrel to a tight bore barrel can improve accuracy and range. A quality inner barrel can provide tighter groupings and better consistency. The Prometheus 128mm Precision Inner Barrel is made specifically for the ARP 9 (also works with ARP 556)
- Hop-up Chamber: Swapping out the stock hop-up unit with a higher-quality one can improve consistency and accuracy. The Prometheus Hop-up chamber made specifically for G&G guns comes to mind.
- Hop-up Bucking: The Prometheus Purple Bucking or Modify Ryusoku Bucking is recommended to further enhance performance.
Electronics Upgrade
MOSFET Upgrade: The ARP series already comes standard with an Electronic Trigger Unit and built in MOSFET. A MOSFET can help protect the trigger contacts from damage and provide better control over the gun's electrical system, such as implementing burst fire or other programmable functions. There are 2 options to consider.
- The Perun Upgrade MOSFET for G&G ETU Trigger Unit is an easy drop in replacement from the stock G&G MOSFET. It has a whole range of features like pre-cocking, faster trigger response and can handle higher voltage to name a few.
- The Gate Titan MOSFET rear wired is a more advanced replacement than the Perun but it requires expert technical knowledge to install. It features optical sensors to detect the trigger pull, pre-cocking, fast trigger response, trigger sensitivity, can be connected to a computer using a Gate Titan USB Link and software to do programming and detect issues.
Rate of Fire
Increasing the rate of fire requires changing the gearset from stock 18:1 ratio to a 12:1 or 13:1 gear ratio. A 13:1 gear ratio means that the motor will turn 13 times to make 1 shot. Therefore the smaller the number the faster the rate of fire. Keep in mind that when you change to a faster rate of fire (ROF), you may have to deal with other issues like finding a magazine that can feed fast enough and shimming the gears properly to prevent damage.
- Gear Set: Upgrading to a high-speed gear set can improve trigger response, rate of fire, and reliability. The CNC 12:1 Steel Gear Set Super High Speed is a popular choice for most players.
- High Torque Motor: The stock G&G motor is pretty good by itself but upgrading to a ASG Ultimate U-22000 Motor can improve trigger response on semi while the ASG 30K Boost motor can increase rate of fire even more.
Ultimately, the upgrades you choose will depend on your specific needs and preferences for the G&G ARP 9. Be sure to consult with a qualified airsoft technician to ensure proper installation and compatibility with the gun's components.
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