$85 Shipped and PP Fees Covered! Black CNC Retro Arms QCS Gearbox Shell (used) - Comes with all shell screws, spring guide, RetroArms Cutoff, plastic selector, and plastic safety bar. - Some wear and tear on the inside of the shell, on the spring guide, and super glue residue from the prior owner on the outside of the left shell. NOTHING that would affect functionality. - No trades, will ship within 1-2 business days via a Priority Small Flat Rate Box - More pics upon request!