Description
Airtech Studios BEU Battery Extension Unit (G&G ARP9/ARP556 – Black)
The Airtech Studios BEU (Battery Extension Unit) for the G&G ARP9 and ARP556 adds space inside the stock’s battery compartment so you can fit a larger LiPo battery for longer games. The ARP9 and ARP556 are compact, popular AEGs, but their small battery space limits the battery you can use; the BEU tackles that without any modification to the replica.
Airtech Studios specialises in practical, well-designed upgrades for popular AEGs. A UK retailer also lists this BEU for the G&G CM16 Raider L 2.0 E. It is a straightforward upgrade for anyone who finds themselves changing batteries mid-game.
What it does
As a UK retailer describes it, the BEU fits inside the original stock compartment and makes room for larger LiPo batteries. It also gives the MOSFET and wiring more space, so they are less likely to be bent or damaged when the stock is closed, and it locks down the two metal stock rails, which the retailer says removes the wobble of an unsteady butt-stock.
Vents on each side help airflow and reduce heat build-up around the battery. The retailer says the replica stays about as compact as before, so it is still well suited to CQB, and the extra capacity is useful for players running a drum magazine.
Choosing a battery
The listed maximum battery size is approximately 152mm long by 19.5mm wide by 11.75mm. Measure any pack against these figures, check that its voltage and connector suit your replica, and route the wires so they are not pinched.
Key features
- Battery extension unit for G&G ARP9 and ARP556
- Also listed for the G&G CM16 Raider L 2.0 E
- Room for larger LiPo batteries
- More space for the MOSFET and wiring
- Locks down the stock rails for a steadier stock
- Side vents to help airflow
- No modification required
- Tough, flexible nylon
Compatibility
Made for the G&G ARP9 and ARP556, and listed by a UK retailer for the G&G CM16 Raider L 2.0 E. Other G&G models and other brands’ replicas are not covered, so check your model before ordering. Any battery you choose still needs the right voltage and connector for your replica.
Care and maintenance
Check the BEU and stock fit whenever you change the battery, and make sure no wires are trapped. Remove the battery after every game and store LiPos safely in a LiPo bag, charging them only on a suitable balance charger.
Wipe the unit clean if it gets muddy, and keep the vents clear.
Who is it for?
G&G ARP9 and ARP556 owners who want longer run time from a larger battery without giving up the compact size of their replica.
Please note: Battery and replica are not included.
Please note: what's in the box can vary between batches. If a detail such as included magazines, battery, charger or connector type matters to you, contact us or call 01842 683567 and we'll confirm before you order.
