Airsoftjunkiez has a quick demonstration of their latest custom High Pressure Air (HPA) build, the Airsoftjunkiez Custom HPA LCT Airsoft RPK. Whilst the base rifle originally functions as an Automatic Electric Gun (AEG) featuring full metal construction and real wood furniture, this custom iteration swaps the traditional gearbox for an advanced pneumatic system.

The build uses the Wolverine Airsoft Inferno Gen2 V3 Premium HPA engine, which drives the rifle's performance. To complement the power system, Airsoftjunkiez modified the internal barrel assembly by installing a 650mm Prometheus 6.03mm tightbore inner barrel, paired with a BullGear V3 Hop-up unit and a flat hop configuration for improved consistency.

The custom support weapon is designed for sustained suppressive fire, drawing BBs from an included LCT drum magazine. This demonstration highlights how standard external components can be integrated with aftermarket HPA systems and precise internal parts to create a specialized HPA airsoft support weapon.