CNC Split Gearbox V2 HopUp Chamber ULTRA

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Retro Arms CNC Split Gearbox V2 with int. Hop Up Chamber ULTRA (8mm) - QSC

Features
* CNC machined from aircraft-grade super duralumin (EN AW 7075 T651).
* Strength exceeding steel and unparalleled durability compared to common zinc alloy.
* Two-piece split structure (upper/lower) for dramatically easier maintenance and parts replacement.
* The hop-up chamber is fixed to the upper receiver, maintaining a consistent nozzle-to-chamber relationship independent of the outer barrel.
* Includes the updated Hop Up Chamber ULTRA, allowing for fine adjustments and the use of ROBUST hop-up rubber (compatible with nozzle tips Φ7.2mm or less, base Φ8mm or less. Changed to a duralumin hop adjustment printed dial).
* QSC system allows for spring replacement without disassembling the gearbox.
* Compatible with Tokyo Marui standards and electronic trigger units from major manufacturers such as GATE.

Included Accessories
* CNC Split Gearbox V2 (8mm) Main Body
* Mounting Screw Set
* QSC Spring Guide
* CNC Hop Up Chamber AR15 ULTRA

Improvements
* Added grooves to prevent various springs, such as the tappet plate and trigger switch, from falling out.
* Dedicated hole for confirming pre-cocking adjustment.
* Expanded wiring space (supports up to 2.5mm diameter) and protective edges to prevent wiring damage from the motor.
* Significantly increased wall thickness around the cylinder head, which experiences high loads, dramatically improving durability.
* Dedicated hole to release the anti-reverse latch from the outside.
* Other improvements to assembly accuracy through dimension optimization and chamfering of various parts.

Notes
* Compatibility issues may arise due to dimensional differences, and specialized knowledge, experience, and skills are required for installation. Please seek support from a shop or similar.
* Due to anodizing, the color may vary between batches and differ from the product image. Please check in advance if you are concerned.
* Do not apply excessive force during installation (recommended screw tightening torque is 1Nm or less).
* MAXX cylinder heads cannot be used.