Find out about the high-capacity airsoft magazines from Valken Tactical. They have Flash magazines for M4 and AK AEGs (magazines that use string pull for winding). They also have as standard-type or Marui compatible high capacity AEG magazines. Watch the Valken Minute episode on these products... "This is a brief instructional video on how to load and use your Valken Hi-Cap Magazines. Visit Valken.com for the products seen in this video."