It is a manual break open barrel where the spring is compressed by moving the barrel downwards 90 degrees from the sight plane, thus when released, charges the air into the chamber. Not CO2. These are referred to as spring air. This type of air rifle does not hold a compressed charge of air like a pump up. The recoil is forwards as the spring is released.Stupid question, but is it pump or co2 powered?
I would go for this, I never liked the spring air, felt wrong when it fired.Looking at parts diagrams I think the difference between spring-air rifles and nitro piston rifles is this - spring-air cocks a spring when you break the barrel, and when you pull the trigger it releases the spring which compresses the air at the same time it sends the pellet out the barrel. With a nitro piston it looks to me like it compresses the air when you break the barrel, and releases it when you pull the trigger. There's no big spring in a nitro piston rifle. Nitro piston is supposed to last longer because they don't rely on a spring that gets weaker over time. I might have to give one a try for my next air rifle.