G&G M4/M16 2300 Round Drum Mag (Automatic Electric w/ lipo battery)

Features:

• 7.4v 800mAh Battery INCLUDED
• Auto Winding
• Durable Polymer Construction
• High Tension Spring
• On/Off Switch
• Strong Motor
• Enlarged Opening for Easy Loading
• Lightweight Build
• Ergonomic Finger Grooves
• Universal Design