Plug, large, male part plug contact.

It has 8 functions. Thanks to its special coating, it is resistant to atmospheric conditions (Military Specification MIL-V-173C). Battery protection supports: Li-Po 7.4V / 11.1V / 14.8V. You can also disable the protection and use other batteries.  

BOL Battery Wire Connector for airsoft AEG rifles tamiay "large" - For Remote Control & AEG -

WARFET is GATE’s most advanced AEG Control System. It has 20 functions and almost 6 million possible configurations. The outstanding Tactical Programming Card provides you with very easy access to the WARFET Power Module settings. SUPER-EASY INSTALLATION - JUST PLUG&PLAY, NO SOLDERING REQUIRED