Retro Arms Airsoft CNC Gearbox V3 QSC 8mm

Retro Arms CNC Gearbox V3 QSC 8mm

This Retro Arms CNC gearbox is designed for all airsoft replicas that use the V3 design. This gearbox is manufactured from one solid block of aircraft grade aluminium (Dural) EN AW 7075 T651, which has higher strength (590MPa), than common construction steel (390MPa). Because of the used material, our gearboxes have the best durability and resilience than the common zinc-aluminium gearboxes. We are manufacturing these gearboxes on our precise CNC milling machines in our factory. Package includes CNC Gearbox V3 (8mm) – Quick Change Spring Guide and a set of screws.

We made some useful improvements into our CNC gearboxes V3:

Spring holders have grooves, so the springs for tapped plate and trigger switch will not jump off.

Added groove for safety lever, so it will hold during installation.

Added groove for trigger spring, for better fitting.

AOE control hole.

Sockets for bushings/bearings have smaller diameter about -0,02mm (7,98mm), for non-overturning the bushings during installation.

The socket edges are cut down for better installation.

We enhanced grooves for wiring for 1mm, you can now use wirings with 2,5mm diameter.

Added protecting edge for wiring against the motor.

All threads are now shaped instead of cut for better strength.

Both gearbox parts are centred by milled grooves and edges.

Added hole for releasing anti-reverse latch.

For better durability, we added more material around cylinder head part of the gearbox, this was the most critical part and we added 100% more material where huge radius is.

Added groove for anti-reversal latch spring, so it will not jump off.

Outer edges are now cut off

!! do not use MAXX cylinder head !!

Space for trigger switch is designed for compatibility with trigger switches, trigger units from common manufacturers for example: Gate, etc.

CNC gearbox V2 has protective anodizing, even when it is problematic to anodize aluminium EN AW 7075 T651 (Dural), because of its high strength and hardness. If we did not anodize products from this material, there is huge risk of corrosion (huge grey spots with rotten look).

CNC gearbox can be installed only in airsoft replicas with Tokyo Marui compatible standard. That means even the inner parts. Do not use rude force during installation. Use only 1Nm tightening moment on screws, otherwise the screws will overturn in heads. There is no need of tightening screws with rude force, if you want to be sure that screws will sit perfectly, use thread glue or thread colour.

You can use in our CNC gearbox any spring of your choice but be aware that stronger springs will result in lower durability.

Same Day Dispatch on All Orders Placed Before 3pm Monday – Friday

For Airsoft Use Only, cannot be Adapted or Modified for any other purpose

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