Guns Modify : Bearing Rotor Set for Marui G17 GM Zero Housing

This time GM have introduced us the Bearing Rotor set for the Tokyo Marui Model 17 that will replace the original ones with a more precisely engineered ones that will be much more durable without adding much weight. Also makes your Model 17 pistol cycle much more smoothly with snappier recoil. A simple, cheap, and must have upgrade.