Package Includes: - (1) CA MK16 Skirmish ECS AEG Description: - THIS GUN IS STOCK . - threaded 14mm positive outer barrel - Tamiya connector for battery - LIPO READY (I used 11.1 Lipo on this and works great, NO BATTERY INCLUDED THOUGH) - ECS trigger can be set to 3/5 burst modes and semi lock. - Spring is an M95 - M-Lok barrel - Picatinny rail - safe, semi, and full auto - adjustable stock