Spring or gas firing mechanism? Each types do the job through a piston that compresses air and then releases it with every bring about squeeze. The differences would be the types of compressors that they use to power the piston. Spring-powered guns have a spring mechanism in position, while gas-powered https://canegunsforsaleinusa40505.bloggerswise.com/42142043/detailed-notes-on-gun-brands-that-start-with-c