The spring powered Desert Eagle Airsoft Gun is the cheapest of the 3 types of guns as it uses a spring powered mechanism. Don’t be fooled though, just because is cheap compared to the other two, it doesn’t mean that it doesn’t perform well. The springs can be so powerful that the bb pellets can travel upto 280 fps at about 50-60 feet. This type of Desert Eagle model is cheap as chips. Beware though, dont’ even thing about bringing one of these to an airsoft match! You’ll get owned. The spring version is more or less for fun, something for shooting in your back yard. If you want something for an airsof match then get the CO2 or Electric version. Below is one of Amazon’s best sellers for the spring version.