G&P Navy MK23 Electric 1200rds Drum Magazine Motor_High Torque Motor (RPM 22000rmp + / - 10%) Using Velcro strip to fasten

Using Velcro strip to fasten on JPC vest(Velcro is included in the kit package)

And as evidenced by the popularity of their own products they're off to a good start

5KU Zen Style B-12 Classic AK Upper Rail

The unit can operate via battery power or run off of USB power as well by removing the battery

G&P Navy MK23 Electric 1200rds Drum Magazine Motor_High Torque Motor (RPM 22000rmp + / - 10%) Using Velcro strip to fastenG&P Navy MK23 Electric 1200rds Drum Magazine Polymer Construction Automatic Electric Winding System 1200 rds Loading Capacity Gas Drum Magazine Suitable For G&P Navy MK23 Series Airsoft Electric AEG Rifle Airsoft Guns