Contact Us Tel:(626) 286-0360 Store Locations
COVID-19 UpdatesPhone Support M-F 9am-5pm PST
Browse by Type or Category
Free shipping for orders over $80. Coupon code: FREESHIP

Airtech Studios G&G ARP9/ARP556 Battery Extension Unit (Color: Black)

ID: 78381 (ACC-BEU-G&G-BK)
Airtech Studios859188783812BEU-G&G-BK78381
4.2 stars, based on 5 reviews
Airtech Studios G&G ARP9/ARP556 Battery Extension Unit (Color: Black)
Hover or touch above to zoom
Product image 1 Product image 2 Product image 5 Product image 6 Product image 7
Airtech Studios


MAP ProtectedExempt From Coupons
The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.
Color Options:


  • Relieve a cramped environment for your MOSFET and cables to sit to prevent it from over bending and damage
  • Utilize larger battery capacity - perfect if you're running the G&G drum mag as a support role
  • Eliminates the unsteady butt-stock by locking down the two metal rails
  • Maximum battery size approx 152mm long x 19.5mm wide x 11.75mm
  • Once installed, the ARP9/556 remains just as compact as before - perfect for CQB use
  • Compatible also with the G&G CM16 Raider L 2.0 E
Tired of using smaller batteries for an all-day game? Here's your solution!

One of the main issues encountered with the G&G ARP9 is the limited battery spacing to operate conventional sized LiPo batteries to endure a long-lasting skirmish event.

Once the LiPo was installed into the stock compartment, we found it difficult to fit the MOSFET, fuse and cables back inside without the risk of over bending (which weakens the circuit over time). Likewise, we wanted to minimize the prospect of denting the battery's surface from the cramped spacing.

By offering additional spacing inside the compartment, the Battery Extension Unit (BEU) is designed specifically to relieve all stresses on the ARP9's components, while protecting it throughout to extend its durability. There are crevice's on each side of the BEU to maintain a constant flow of ventilation to the battery and components to prevent a buildup of heat.

The BEU is designed to fit beautifully with the ARP9's original design by sitting seamlessly inside the stock compartment with no modification needed to install. Made of strong, flexible nylon that is resistant to BB impact and rough handling.

Manufacturer: Airtech Studios

Color: Black


Dimensions: 152mm long x 19.5mm wide x 11.75mm
Compatibility: G&G ARP9/ARP 556 and Raider L 2.0 AEGs
Material: Polymer

About Airtech Studios

At Airtech, we pride ourselves on finding and developing bespoke Airsoft accessories that enhance your Airsoft gaming experience.

Our team at Airtech Studios strives to develop unique innovations to push the boundaries of Airsoft performance to its limits and beyond.

5 Customer Reviews

(Write a review)

by Zander A. on 07/28/2020
"This is a must buy if you have arp9. it lets your gun hold bigger battery and gets rid of the stock wobble.
by Armin A. on 03/03/2020
"Objectively improves the arp9's stock. A must buy if you're keeping the original stock
by John H. on 08/24/2018
"Sturdy material with no creaks or slack. Generous space after adding it to a 556 and can now run a 1450mAh 7.4 with room to spare even with the connectors and MOSFET.

Questions, Answers and Comments

Discuss about Airtech Studios G&G ARP9/ARP556 Battery Extension Unit (Color: Black) with your friends and fellow shoppers!

Comment or answer questions for a chance to win awesome prizes. Details can be found on the Facebook page. Remember to check "Also post on Facebook" when commenting to qualify for the giveaways!

Have an urgent question about this item? We monitor these comments daily, but it may be faster to email us directly or call us at (626) 286-0360. Our resident experts are standing by to answer your questions!

California Proposition 65 Warning: Cancer and Reproductive Harm -

Customers who bought this also purchased

Parts and accessories may not be compatible with the product displayed on this page. For compatible parts/accessories, see the You May Also Need section and please verify details on the product description page.

Search tags for related products