G&P Navy MK23 Electric 1200rds Drum Magazine Motor_High Torque Motor (RPM 22000rmp + / - 10%) With Rubber MOLLE strap on

With Rubber MOLLE strap on Back

Able to switch between 30 and 130 rounds capacity

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

600D polyester weather-resistant fabric Construction

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

G&P Navy MK23 Electric 1200rds Drum Magazine Motor_High Torque Motor (RPM 22000rmp + / - 10%) With Rubber MOLLE strap onG&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