A look at the APS Edge II Gearbox to show how gearboxes work in this video by Airsoft Europe. The V2 Edge II Gear Box is a high-performance airsoft upgrade featuring a built-in MOSFET for better firing response, a shorter trigger pull, a durable steel piston, and a ported cylinder for improved airflow. It's compatible with various aftermarket parts and allows for easy spring changes to adjust your airsoft gun's power for different situations.

A quick demo of the Ghost Patrol Phantom Black with Edge II Gear box from APS... "It is the first APS AEG with the new Edge II gear box. Built in Micro fet and full upgraded internal parts is able withstand M140 spring, High Torque Motor and high power battery.