The Tanker Battery Extension Unit (TBEU) is designed specifically for the KWA PDW Series to allow use of a larger battery gun. This allows players to use higher-capacity batteries for longer gameplay without compromising the aesthetics or functionality of the RIF.

This easily installed upgrade gives you 70% more battery space which also helps to relieve stress on the MOSFET, fuse and wires.

NOTE the original locking mechanism will remain functional but only the 2 longest points if adjustment will remain available.