ARES AK Slim Pistol Grip + High Torque Slim AEG Motor
 
Motor Thickness: Below 20mm
Grip Thickness: 24mm
Color of choice : Black / Dark Brown
suitable for the AK series AEGs
Made of steel and will make sure your AEG efficiently.
Do make sure the gears in your AEG are compatible with high torque motors. 
All aftermarket upgrade parts require necessary skill or modification to install and assemble, please consult with your airsoft technician if needed