Spring or gas firing system? Both types work by way of a piston that compresses air then releases it with every cause squeeze. The differences are classified as the types of compressors that they use to power the piston. Spring-powered guns have a spring mechanism in position, whilst gasoline-powered guns https://gunsforsaleinmassarmslist40516.wikilentillas.com/1436974/how_shotguns_under_200_can_save_you_time_stress_and_money