Airtech Studios G&G PDW15/CQB Battery Extension Unit Ghillie Suits or you can extend the

or you can extend the stock and use both hands for added accuracy

Works drop-in with most M4 platforms

This rifle is very well put together and dependable

and SMG guns

Airtech Studios G&G PDW15/CQB Battery Extension Unit Ghillie Suits or you can extend theFeatures Relieve a cramped environment for your MOSFET and cables to sit to prevent it from over bending and damage Increase Battery Capacity Protect Internal Cables Prevent Heat Built up Improved Ventilation The Battery Extension Unit (BEU) is designed to fit perfectly with the G&G PDW & CQB Series original design by sitting seamlessly inside the stock compartment with no modification required to install. The BEU is designed to cater for larger