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PolarStar F2 Fusion Engine M60 AEG Drop-In Gear Box

[SI01][36855 / FEMG-M60]
$545.00
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The Fusion Engine was released back in 2011, and was the first new HPA system to hit the airsoft market in over two decades. This is the system that started the HPA revolution, and has set the benchmark to which all other systems are measured. Although many have followed it, the Fusion Engine is considered by most to be the best. This is a complete drop-in system that replaces the entire AEG gearbox with a full CNC machined lightweight aluminum chassis. It is the most adjustable system produced with the widest range of adjustment in both velocity and rate of fire. The system has a dual solenoid design with a closed bolt system, so you are able to adjust the poppet valve (firing air) and nozzle (feeding) independently for full control over both the loading time and air volume used.

The true closed bolt system is easier to achieve with a high level of accuracy since it is not as critical of the hop-up configuration as an open bolt system. Additionally, it does have the best feeling trigger. The trigger micro-switch is custom fit to the frame. Thus, the trigger has a distinct break, hard stop, and short reset.

Like other HPA systems, the velocity of the Fusion Engine can be fine tuned by adjusting the input pressure. However, there are also 6 nozzles available each with a different level of restriction. This allows you to shift the velocity adjustment range up or down in large increments. The Fusion Engine has the widest velocity adjustment range of any of their systems.

The maximum cyclic rate of the Fusion Engine is affected by several factors such as the operating pressure as well as the quality of the magazine and BB's used. However, 30 rounds per second is achievable in most standard configurations.

This system was primarily designed to deliver maximum power, so air efficiency was not a critical part of its development. However, thanks to the modular design of its poppet valve, the system can be fine tuned using more restrictive valve stems and shims which allows air efficiency to more than double when operating at traditional field velocities.

Specifications:
Manufacturer: PolarStar
Model: F2 Fusion Engine M60 AEG Drop-In Gear Box
Package Includes: Drop-In Gear Box Kit
Warranty Length: 1 Year
Warranty Handler: Airsoft GI (Warranty Policy)

Features:

  • Dual Solenoid Design
  • Includes Fire Control Unit (FCU)
  • Modular Poppet Valve
  • FPS Adjustment

Specifications
Manufacturer: PolarStar
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