1300 Round Electric Auto Winding Dual Magazine for M4 M16 Airsoft AEG Guns in Tan
Sound control auto winding mechanism works off the sound of your AEG.
Dummy 5.56 bullet cap.
Integrated magazine clamps.
Top sliding door on one side for loading BB's, the dummy bullet cap also slides so you can fill the other side of the mag!
Requires four AAA batteries that are sold separately.