Airtech Studios BEU Battery Extension Unit for ARP-9 / 556

Airtech Studios
  • Drop In Upgrade
  • For Large Batteries
  • Extra Storage Space

A battery compartment extender designed to fit the G&G ARP-9 which allows the use of a wider range of larger batteries.

Full description


The case is constructed from thick Polymer and clips directly onto the existing battery storage compartment as a simple drop in upgrade, and features walls which match the thickness of the existing battery compartment to increase its resistant to Shock and Impact Damage. The sides of the Box allow for the use of the Sliding Stock, and caters for larger sized batteries. This is the perfect purchase for any Airsoft Skirmisher who owns an G&G ARP-9 and always wanted to use larger batteries.


  • Drop In Upgrade for the ARP-9
  • Clips on to the back of the ARP-9 Battery Compartment
  • Designed to utilise larger batteries
  • Tough Polymer Design to withstand Shock and Impact
  • Extra Storage Space for Batteries
  • Still allows the use of the ARP-9 Sliding Stock
  • Lines up perfectly with the ARP-9 Body
  • Protect the ARP-9's Wiring & Components
  • Reduce the build up of heat

Package Includes:

  • BEU Battery Extension Unit for ARP-9 / 556



External Part Type
Stock Adaptor


Colour Wheel Greyscale
Item Colour
Construction Icon
All Polymer construction

Weight and Dimension

Product Height
Approx. 4.5cm
Product Length
Approx. 5.5cm
Product Width
Approx. 5cm
Weight KG Icon
Weight (KG)
Approx. 0.25kg

Part Specific

Weapon Platform
AR 9mm, ARP -9,