RetroArms is a high-quality airsoft internal upgrade parts manufacturer from the Czech. Specialized in CNC parts, RetroArms gearboxes are arguably one of the highest-quality and most robust AEG gearboxes currently in the market. If you are looking for high-quality AEG upgrade parts, then RetroArms is definitely the brand you should check out.
- RetroArms CNC Aluminum 7075 Gearbox (8mm) for Tokyo Marui SOPMOD M4 Out of Stock RA-7215$186.99
- RetroArms Airsoft AEG Bushing (9mm, CNC Steel) - 6pcs Out of Stock RA-7219$14.99