The Elite Force 9.6v 1600 MAh NIMH nun-chuck battery is a must have for those needing a reliable crane stock battery. Fits in most M4 guns with a crane stock, along with front handguards. The 1600 nun-chuk is a staple battery that fits in a lot of guns. Elite Force has a full 1-year warranty on their batteries (direct from the manufacturer) for defects.
Use with any charger, has a mini-tamiya connector. Works great in the back of G&G M4 Combat Machine guns, Elite Force guns, KWA, and many more!