Retro Arms CZ Billet CNC 9mm QSC Ver.2 Gearbox Shell for M4 / M16 Series Airsoft AEG Rifles

Features

• Precision machined from a block of billet EN AW 7075 T651 aluminum
• Reduction of wall thickness for greater compatibility with most M4 / M16 receivers
• Milled ports for improved air flow
• Quick change spring guide system
• Conveniently placed porting to easily lubricate gears without gearbox disassembly
• Opening for releasing anti-reversal latch
• Reinforcement in key stress points to counter rapid wear from high performance parts
• Precision CNC machined spring guide included

Manufacturer: Retro Arms CZ

Specifications:

Compatibility: For Tokyo Marui, G&P, Matrix and other compatible M4 / M16 Series Airsoft AEG Rifles (Modification may be required depending on brand and model)
Material: CNC Billet EN AW 7075 T651 Aluminum
Color: May vary between silver and black