Compressed air gun trigger structure

A compressed air gun trigger structure, the air refill lock cooperates with the trigger assembly to facility full auto and semi auto shooting. That is while the pressure of the eject chamber is lower than the set scale, the air refill lock will lock the piston even though the trigger is triggered by user. So the compressed air gun cannot be fired when the pressure is low. When the eject chamber is fully refilled and the pressure will push the air refill lock to releases the trigger and while user triggered the trigger, the compressed air gun is fired. That is the semi-auto mode. If the user keep holding the trigger, air refill lock will automatically trigger the piston for firing when the eject chamber is fully refilled. That is the full-auto mode.