OPS-Store goes over the Storm HP-R, a French made HPA engine. It is claimed to offer a simple, fast, and innovative conversion solution for airsoft players. It transforms standard AEG V2 rear-wired gearboxes into high-performance HPA replicas. This electro-pneumatic kit features an adjustable nozzle and a digital FCU with an integrated display for quick, intuitive settings, allowing users to easily customize the power, rate of fire, and firing modes.

Powered by an optional 11.1V T-Dean LiPo battery, the HP-R boasts exceptional responsiveness via its internal solenoid. A major benefit is the minimal maintenance required: just add a drop of silicone oil to the feed tube valve every 3,000 BBs. Installation and full programming guides are easily accessible via a provided QR code.