Desert Eagle by Magnum Research, Inc.

IT's ARRIVED! IT's HERE! -- a name famous all over the world, and among the gun connoisseurs it is the synonym for performance, power and dynamics. This CO2 powered replica pistol is a new highlight in the premium class. The Desert Eagle is the first CO2 pistol with a blow-back pellet system! For the individual mounting of optical sights, lasers, and lamps. Picatinny rails have been integrated in this unique design.
Plastic exterior. Some internal parts are metal, including the barrel.

Magazine Capacity: 8 shot
Blow back system
CO2 cartridge loading: screw system
Trigger: Single/Double-Action
Overall length: 11 inches (280 mm)
Barrel length: 5.66 inches (140 mm)
Safety: trigger and firing pin safety
Weight: 2.2lbs (1.1kg)
0.177" 425 ft/sec