The Desert Eagle .50AE is by far the best spring hand gun in our line up. Weighing in at a hefty 2 pounds, it fires .2g BBs with an amazing .4j of muzzle energy. Featuring a scale size highly detailed metal magazine, no expense was spared on this model. Fully functional trigger, safety, slide release, magazine release. Adjustable Hop-Up lets you fine tune the ballastic characteristics of this model with any weight BB. This is a spring gun, and the slide must be manually pulled back for each shot. The body is made of ABS plastic with metal internal parts.