A&K 5000rd Drum Magazine For M416 AEG(Manual)(Black)

A&K 5000rd Drum Magazine For M416 AEG(Manual)(Black)
http://airsoft.tiger111hk.com/p21106/A&K-5000rd-Drum-Magazine-For-M4/16-AEG%28Manual%29%28Black%29/product_info.html