Double Eagle M904 M4 with Falcon Fire Control System (Polymer Handguard - Black - M904G)
14mm neg barrel
polymer m lock foregrip
polymer body 
rotary hop unit
quick change spring system under batt box
extendable stock
mosfet trigger unit programable :
1-3mm trigger , 1-5 shot instead of full auto ,binary fire pull and release ....very sensitive trigger !!!!!
no battery or charger with the gun
advised  stick nuprol 1100mah 11.1v in deans connection
 advised balance lipo charger