ARES HPA Engine Gearbox Set V2 Marui / Ares M4 AEG

The HEB-001 HPA Engine Box with EFCS from Ares, is a HPA ready drop-in engine pre-built for AR15/M4 AEGs with a version 2 gearbox shell and single sided fire selector, converting your AEG to a high performance HPA system, a reliable, robust and performance enhancing system for those with interest in HPA setups, Ares offers a more affordable alternative to other HPA engines on the market, ideal for newcomers of the HPA system.

Replacing the version 2 gearbox (with some fitment adjustments for different brands and hop-up chamber), the engine can be powered by compress air, CO2 or gas, with an output recommendation of 58 to 174 PSI (4 to 12 BAR) for optimal, consistent performance. For HPA connection, the air line hose are spec. to US-types air lines, incompatible with EU-type air lines, with requirements of owners of this engine to purchase the air line, regulator and air bottle for the engine to work. The system also features an EFCS powered by an 11.1v Li-Po Battery with a T Plug to improve the protection and efficiency of the gearbox. Both the battery and air line connections are configured for the pistol grip.