Tokyo Marui 220rd Magazine for SG550/551/552
Polymer Housing Magazine
Suitable for Tokyo Marui SG550/ 551/ 552 Series Airsoft Electric Gun AEG Rifles
220 Rounds Hi-Capa Loading Capacity 
Large thumb dial Integrated winding wheel on bottom for speed reloading 
Suitable for 6mm Plastic Bullet BB
Magazine design allow two magazine clip together easily