Complete your WWII Submachine (Airsoft Replica) Unsurpassed Realism Classical Weapon with Full Steel Construction - Electric Blow Back Version - One Piece Steel Stamping Body - Hinged Ejection Port Flap - Genuine Welding - Steel Retractable Stock Fully Automatic Shooting Mode 65 rounds Loading Capacity Magazine with battery compartment Electric contact on Magazine Top and inside magwell to power the gun It add extra realism to this classical gun (No magazine, No Firing) Allow installation of 9.6V 1500mAH mini Nunchuck Battery Easy Hop Up Adjustment - dial located inside magazine chamber This is rare item hard to find in the market. The collector item we recommend for WWII lover or all airsoft lovers!!