Retro Arms CNC Split Gearbox V2 – 8mm Internal Hop-Up Chamber for Airsoft

CNC Split Gearbox V2 for AR15/M4/M16 Airsoft Replicas

Upgrade your airsoft experience with our CNC Split Gearbox V2, engineered for precision and durability in AR15/M4/M16 replicas and compatible V2 gearbox systems. Crafted from solid aircraft-grade aluminum (EN AW 7075 T651), this gearbox boasts unmatched strength (590MPa) compared to standard steel (390MPa), ensuring exceptional resilience against wear and tear. Designed with a split construction—Upper and Lower halves—it simplifies maintenance by allowing quick access to internal components without removing the entire gearbox from your receiver.

Key Features:
– Material Superiority: Built from high-strength aircraft aluminum for durability surpassing zinc-aluminum alternatives.
– Ergonomic Design: The split design enables easy cylinder set adjustments; dismount only the Upper half via a single receiver pin.
– Compatibility: Fits receivers with non-straight geometry and integrates seamlessly with any AR15/M4 Hop-Up chamber.
– Enhanced Functionality: Includes a 21.3mm nozzle length (adjustable based on Hop-Up bucking or tapped plate angle).

Package Inclusions:
– CNC Split Gearbox V2 (8mm bushing diameter) in your choice of color
– Complete screw set
– QSC spring guide

Innovative Upgrades:
– Grooved spring holders prevent spring misalignment during assembly.
– Reinforced wiring grooves accommodate 2.5mm diameter wires for cleaner setups.
– Shaped threads enhance structural integrity for long-term reliability.
– Expanded material around the cylinder head reduces wear in high-stress areas.
– Anti-reverse latch groove ensures secure spring retention.

Why Choose Our Gearbox?
Designed for precision shooters seeking reliability and customization, this gearbox minimizes downtime with tool-free maintenance access and optimized socket dimensions (-0.02mm tolerance) for precise bushing installation. Its compact design and improved wiring routing reduce motor interference, while cut edges enhance aesthetics and handling. Whether upgrading for competition or casual play, this gearbox delivers unmatched performance tailored to your needs.

Experience precision engineering designed to elevate your airsoft game—upgrade today with our CNC Split Gearbox V2.