Positions of the piston and gear after GEAR BOX operation
Semi-auto mode：
The timing of the electric current break is certain with semi-auto mode. Because of inertia and the rebound which result from tension of spring, the piston usually stops at these two positions after shooting. Please refer to the photos below. (The different strength, length of spring and the power of battery also make the piston position different.）
Full automatic：
When full automatic is operating, the time gap between each shooting is different and the timing of the electric current break is uncertain. And because of inertia and the rebound which result from tension of spring, there are four possible stop points of the piston and gear (The different strength, length of spring, and the power of battery also make the piston position different.）
The timing of using forward assist：
Although AEGs is a toy gun, we still apply the norm of real gun on airsoft gun. We have to unload airsoft gun first after shooting or combat.
When we don’t use the airsoft gun, we have to release the magazine and change fire mode to semi-auto. Point the gun toward safety area and clean the pellets remaining in barrel by shooting two ~ three times. Then push the forward assist knob to release piston and spring.
Pushing the forward assist knob when the fire mode is still in auto may cause the broken piston. As it mention above that there are four possible stop points of the piston after automatic shooting. If the piston happens to be at the forth position and players push the forward assist knob, No.3 gear will reverse too fast because of the inertia and rebound which result from the tension of spring. The reversing No.3 gear will hit the last teeth of piston and may break it. This situation gets worse with more powerful spring setting.
The proper way to use forward assist are first, release the magazine, Second, Point the gun toward safety shooting area and clean the pellets remaining in barrel by shooting two ~ three times. Finally push the forward assist knob to release piston and disassembly battery plug. Then store your airsoft gun into carrying bag. Forward assist knob is not for using at any moment. The proper timing of using forward assist knob is after shooting or combat and all the unloaded processes are done.
