The APS KU Series AUG, like all airsoft guns in the KU Series, has a progressive trigger design – pulling the trigger half-way produces semi-auto fire, while a full trigger pull produces fully automatic fire. It also comes with a cross-bolt, button type safety mechanism.
The included full-metal V3 Gear Box includes a quick spring change function, which allows the user to easily take the main spring out of the rear, which is easily accessible because the user only has to remove the rear butt plate of the gun to access the spring.
Each airsoft gun in the KU series also comes with 4 picatinny rails for accessories. The grip and body of the gun also has added texture for better overall handling.
The KU AUG features a Kryptek Typhon water transfer coating.