Retro Arms AEG V2 CNC Gearbox QSC (8mm) - Black

Retro Arms Airsoft AEG V2 CNC Gearbox with Quick Spring Change QSC (8mm) - Black

CNC gearbox V2 is designed for airsoft replicas AR15 (M4), M16, and other ones with V2 gearbox. This gearbox is manufactured from one solid block of aircraft aluminum (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 common zinc-aluminum gearboxes. We are manufacturing these gearboxes on our precise CNC milling machines in our factory. The detail in the bracket (8mm) means diameter for bushings/bearings.

Package includes: CNC Gearbox V2 (8mm) – QSC in the chosen color, set of screws, and QSC spring guide.

Improvements to CNC gearboxes V2:

• Spring holders have grooves, so the springs for the 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 a 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 of the gearbox parts are centered by milled grooves and edges.
• Added hole for releasing an anti-reverse latch.
• For better durability, we added more material around the cylinder head part of the gearbox, this was the most critical part and we added 100% more material where there is a huge radius.
• Added groove for anti-reversal latch spring, so it will not jump off.
• The outer edges are now removed.
• You can find what type of sockets the gearbox has on the outside part of the gearbox (8mm or 9mm).

The Retro Arms gearbox has a quick spring change system QSC, where you can put out a whole spring guide with a hex key and change the spring without the need to open the gearbox. In this solution, you need to secure a spring guide with a screw, commonly with AR 15 (M4) replicas, which is by stock screw. In situations where you have folding stocks or no stock at all, you have to secure the spring guide with a QSC screw. Otherwise, there could be situation, where the spring guide will stuck with the spring. This is because the spring guide is not fixed in the gearbox but has a will for easy removal with a hex key.

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

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

CNC gearbox can be installed only in airsoft replicas with Tokyo Marui compatible standards. 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 color.

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

Installation of the inner parts and gearbox requires professional knowledge, experience, and skills. There are a lot of airsoft manufacturers on the market and every one of them creates their own sizes, there are no standards like engineering ISO in airsoft. This is the main problem with a lot of inner and outer parts from different manufacturers which can be the same product but with different dimensions. We recommend using only parts from manufacturers with Tokyo Marui compatible parts, where there should not be a problem with compatibility with our CNC gearbox.