Airtech Studios BEU™ Airsoft Battery Extension Unit

By offering additional spacing inside the compartment, the Battery Extension Unit (BEU™) is designed specifically to protect and relieve all stress on the ARP9/ 556's components such as the MOSFET and bending of electrical cables, increasing its durability.

Getting ready for your next battle can be a chore taking a long time to charge up. By utilizing larger batteries ensures that you remain in the battle for longer! The BEU™ is designed to fit beautifully with the ARP9's original design by sitting seamlessly inside the stock compartment offering two points of shoulder adjustments to ensure compactness and maneuverability.

The BEU™ is made of strong, flexible nylon that is resistant to BB impact and rough handling. With the extra air space inside the compartment, the BEU™ will protect the MOSFET, fuse, wires, and battery from overheating over time. Likewise, it minimizes the prospect of denting the battery's surface from the cramped spacing.