Scalar Airsoft does a performance test with their Seraph HPA engine firing 375 shots in a row. SERAPH, a new electropneumatic HPA drop-in engine kit, offers a cost-effective upgrade for AEG replicas. It replaces the internal parts of the gearbox shell, maintaining Tokyo Marui V2/V3 dimensions. Powered by SCALAR's own solenoid valves, SERAPH ensures compatibility with standard AEG cylinder heads and nozzles, providing the same performance and features as high-end engines.