8.4v 1600mAh Red Tiger Stick Battery. Fits standard guns that require a stick style battery (AK, MP5K, etc).Your choice of plug type: standard mini-Tamiya or T-Plug (Deans) - use
drop-down menu to select option. If you're not sure which plug type to
use, get the mini-Tamiya, which is the standard for all airsoft guns.
The T-Plug is a custom configuration for advanced users only.