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CNC Gearbox V2 (8mm) - QSC [RETROARMS]

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RETROARMS  6392 | Available
Our price*: $105.31

The last price before promotion: $150.44

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  • Technical data

    Manufacturer: RETROARMS
    Code: 6392
    EAN 8596308063929
    Weight 135 g
    Material aluminum 7075
    Bearings diameter 8 mm

  • Reviews

    • - 16.07.2025 wrote:
      I installed it into a Delta armory replica. It fits perfectly and i has no issues with pin alignment. I used FPSair 8mm bearings wich had to be glued in so they don't move. I couldn' use FPSair cylinder head becouse it has too much play so I used Gate head instead. All the internals can be used from a standard V2 gearbox. Overall gearbox is very good and light when put together.
      Will defenetly allso buy a V3 version.
      Opinion rating: 0
    • - 11.08.2022 wrote:
      The gold standard of gearboxes. Immaculate quality and machining. Perfect fit with Gate Titan, and fits great in both Double Eagle and Cyma m4 lower receivers. Compatible with ambi fire selectors also. Much better internal wire routing than any standard shell I've seen (cyma, arcturus, double eagle)

      Very much worth the money, however it should come with a set of bushings and bearings considering the price of the shell and how cheap those parts are - so don't forget to buy some!
      Opinion rating: 2
    • - 26.07.2022 wrote:
      Although it’s in the pricy side when it comes to gearbox shells it is very well made and it fits perfectly in my Specna Arms M4. All screws needed for assembly are included too which is nice so you don’t have to buy separate screws.
      Opinion rating: 1
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Remade and upgraded CNC gearbox from Retro ARMS .

Gearbox V2 version is completely milled at CNC machining center. Compared to other aluminum gearboxes, our is made out of solid block of aluminum AW EN7075 T651.
Source block weighs 1550g and only 143g of material are left. It is not molding like Chinese ones!
Our gearbox is tested wit M160 spring without any signs of wear or breaking long term. Gearbox's surface is decoratively anodized.

Gearbox is equipped with quick spring change system - QSC. The CNC spring guide is included.

Set include CNC gearbox shell, CNC spring guide and set of screws.


Safety & Usage Guidelines

This product meets all EU regulatory requirements. Professional assembly required. Order assembly service from Taiwangun or refer to materials below. Warning: contains small parts, not suitable for children under 14.
SKU: 6392 · EAN: 8596308063929 · CNC Gearbox V2 (8mm) - QSC [RETROARMS] ·
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REPLICAS AVAILABLE ON TAIWANGUN.COM MIGHT BE PURCHASED ONLY BY ADULT USERS. PRODUCTS FOR ASG AND MILSIM USE ONLY.

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* All prices including VAT without transport costs