Airsoft AEG Uppers

The upper receiver of an Airsoft AEG (Automatic Electric Gun) is a crucial component that houses and protects the internal gearbox, motor, and barrel. Its purpose is to provide a durable and stable platform for these internal parts, allowing the gun to function as designed by housing the spring, piston, and gears, and ensuring proper alignment for shooting plastic pellets. 

Key functions of an AEG upper receiver

• Protects internal components: The upper receiver encases the gearbox, motor, and other sensitive internal parts, shielding them from external impacts and debris during gameplay.

• Provides structural integrity: It serves as the main structural component that holds the entire upper part of the airsoft gun together, ensuring alignment of the barrel, gearbox, and hop-up unit.

• Mounting point for accessories: It provides rails and attachment points for accessories like scopes, red dot sights, and vertical grips, allowing for customization and improved usability.

• Houses the hop-up and barrel: The upper receiver holds the barrel and hop-up unit, which are critical for the accuracy and range of the airsoft gun. The hop-up applies backspin to the pellet, increasing its range, and the upper receiver's design ensures this unit is properly aligned with the barrel.

• Enables customization: Many airsoft guns feature a modular upper receiver design, allowing users to swap it out for a different model to change the look, feel, or performance of the gun.