PEQ Boxes & Batt. Extenders
PEQ Boxes & Battery Extenders, smart battery space for compact airsoft builds
Compact airsoft replicas such as PDWs, ARP9s or the HK 416C often have limited battery space. With the PEQ boxes and battery extenders from Airsoft Legends, you can easily increase the space for your battery without compromising the realistic appearance of your replica. These smart solutions ensure longer playing time and optimal balance during CQB or tactical gameplay.
Whether you opt for a functional PEQ box with extra space or a battery extender that integrates discreetly with your replica, at Airsoft Legends you will find only quality products from top brands such as FMA, Titan, Tokyo Marui, Airtech Studios and Krytac.
Key features
- Extra battery space without modifications to your replica – ideal for compact builds
- PEQ boxes with or without laser unit – realistic design for tactical setups
- Replica-specific extenders – designed for models such as ARP9 and PDWs
- Lightweight and durable – made from high-quality polymer or CNC-milled aluminium
Why choose PEQ boxes and battery extenders from Airsoft Legends
The right battery space makes the difference between limited playing time and a winning strategy. With the battery extenders and PEQ boxes from Airsoft Legends, you can easily add extra capacity to your replica without affecting its handling or balance.
Our PEQ boxes not only offer space for larger batteries, but also maintain the tactical look of your replica. For players who want to keep their replica realistic, there are variants without an integrated laser unit – perfect for milsim or CQB builds. The battery extenders from Airtech Studios are replica-specific, designed for seamless mounting without extra bulk.
What you will find in this category
- Battery extenders for ARP9 & PDWs – more capacity without rebuilding
- Replica-specific Airtech Studios solutions – plug-and-play installation
- Quality materials – choice of durable polymer or CNC-milled aluminium
These accessories not only make your setup more practical, but also visually sleeker and technically optimised.
Frequently asked questions about PEQ boxes and battery extenders
Can I put any battery in a PEQ box?
Not always. Check the specifications of your battery. PEQ boxes are often designed for specific sizes or types of LiPo batteries.
What is the advantage of a battery extender over a PEQ box?
An extender increases the internal battery space of your replica, while a PEQ box offers external expansion while maintaining a tactical appearance. Both solutions improve playing time.
Are Airtech Studios extenders difficult to install?
No, most extenders are modular in design and easy to assemble without tools – ideal for quick upgrades.
Can I use PEQ boxes with lasers on airsoft fields?
That varies per field. Always check the safety regulations. Only red or IR lasers with limited strength are allowed at registered fields. A Peq Box for inserting a battery is only intended for this purpose. If you want to play with a laser unit, go to our Laser Modules category.
Discover our Airsoft Batteries for compatible batteries, view our Adapter Cables for connection solutions or charge safely with our Battery Chargers & LiPo Bags.
Compact size, maximum power – with a smart battery extender or PEQ box from Airsoft Legends, you can increase your playing time and performance without compromising on mobility.

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