RETRO ARMS CZ Billet CNC Ver.2 Gearbox Shell for HPA Engines

Features

• Precision machined from a block of billet EN AW 7075 T651 aluminum
• Durable anodized finish
• Reinforcement in key stress points to counter rapid wear from high performance parts
• Pre-radiused cylinder windows - helps evenly distribute impact force
• Deeper wire channels along base of gearbox
• Designed to fit with most popular HPA engines

Specifications:

Compatibility: Fits most HPA Engines, designed to fit in guns that utilize Version 2 Gearboxes
Material: CNC Billet EN AW 7075 T651 Aluminum