A quick look at the Airsoftjunkiez Custom HPA LCT Airsoft RPK74MN Full Metal which they turned into a high-performance HPA gun featuring a Wolverine Airsoft Inferno Gen2 V3 Premium HPA system. It's upgraded with a 650mm 6.03mm Prometheus Inner Barrel and a BullGear V3 Hop up with a flat hop for enhanced accuracy and range, and comes complete with an LCT Drum Mag for extended gameplay.