This is an authentic

Rubber buttplate for secure shouldering

Muzzle Velocity: 420 - 430 FPS (w/ 0

About Arcturus

This further drops the cost of the motor but again does also drop the performance of the motor below that of the CNC Black version

MAXX Model Airsoft CNC Aluminum Hop-Up Chamber AEG Series ME - PRO Limited Edition (Green & Red) Black This is an authenticMaxx Model CNC Aluminum Hopup Chamber ME Pro (with BB Latching System) unit is precisely made to improve accuracy and ensure consistent air seal for Tokyo Marui (include KRYTAC, except KWA) M4 M16 Standard AEG series. The Hopup Chamber ME unit has a precision rotary dial design for fine hopup adjustments, also re engineered the hopup levers and concave nubs to work best with R hop and Standard Hop to keep the BBs shooting straight and accurate on