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
- Conveniently placed porting to easily lubricate gears without gearbox disassembly
- Reinforcement in key stress points to counter rapid wear from high performance parts
- Pre-radiused cylinder windows - helps evenly distribute impact forc
- Deeper wire channels along base of gearbox
- Precision CNC machined spring guide included
Color: Silver
Unlike most other gearbox shells on the market, the Retro Arms CZ gearbox shells are precision CNC machined out of a solid block of billet AW EN7075 T651 aluminum giving them unmatched durability and resilience. Combined with reinforcement of key stress points and stainless steel connecting bolts, the gearbox shell has undergone extensive stress tests with M160 springs without any signs of wear.
Version 2 Retro Arms gearboxes feature a quick-change ball-bearing spring guide mechanism, allowing spring swaps in a matter of minutes without complete gearbox disassembly.
Compatibility: For Tokyo Marui, G&P, Matrix and other compatible SR25 Series Airsoft AEG Rifles (Modification may be required depending on brand and model)
Material: CNC Billet EN AW 7075 T651 Aluminum
Manufacturer: Retro Arms CZ