RetroArms ASG CZ Scorpion EVO 3 CNC Gearbox

RetroArms CNC gearbox for airsoft AEG rifles ASG CZ Scorpion EVO 3 is an essential upgrade part manufactured from aircraft-grade aluminum EN AW 7075 T651 with strength exceeding standard steel. It features a QSC quick spring change system and includes not only the shell but also the spring guide and screws. Designed for all ASG CZ Scorpion EVO models. Bearing holes are 8 mm.

Technical Specifications

• Model: AEG gearbox ASG CZ Scorpion EVO 3
• Version: 2025+
• Material: CNC EN AW 7075 T651 aluminum
• Bearing Hole Diameter: 8 mm (AntiRot holes)
• Compatibility: ASG CZ Scorpion EVO 3 A1 (all versions)
• Compatible Electronics: ASG EVO control units, JeffTron Leviathan EVO
• Recommended Torque: Max 1.2 Nm

Package Contents

• RetroArms CNC gearbox ASG CZ EVO 3 QSC
• Screw set
• QSC spring guide

Warning

• Do not use cylinder heads with rubber front buffers (MAXX, FPS Softair), as damage to pins may occur.
• Bearing holes are 0.02 mm smaller for tight fit; standard bearings should be glued.
• Installation requires advanced technical experience and correct gearbox centering.