• M4 Gear Box shell (With 6pcs of 9mm Bearing)
      • Model No.:
      • M085
      • Name:
      • M4 Gear Box 空殼 (含6顆9mm培林)
      • Material:
      • Zinc Alloy
      • Weight:
      • 295.8g
      • Note:
      • For Gear box Ver2