Reinforced gearbox shell V.2 (8mm) [A&K]
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$7.43
The last price before promotion: $11.43
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Technical data
Manufacturer: A&K Code: B014 EAN 5904420010180 Weight 320 g Material aluminum Bearings diameter 8 mm -
Reviews
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- 02.09.2026 wrote:I think it ismt worth it!
The box is thin and you need to flie the shell because the bearings&bushings didnt fit and the cilynderhead.
I tried put the box 2 cilynderhead and no one fit it (brands was: fps softair & cyma).
The worst part was the spring guide, because this shell need 4 pins springuide like cyma or E&C. I tried the E&C but it's doesnt fit so i need to file down one half of the gearbox shell.
Overall it's a strong reinforced shell for this price. I tried by 150M spring and it was not a problem the shell. So it is a good shell if you don't worry some little work with it.
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A reinforced V2 gearbox for M4/M16 is characterized by the strength of its front section, which has been significantly thickened to enhance resistance to damage. Additionally, the contact area between the frame and the cylinder has been optimized to evenly distribute loads.
This gearbox is specifically designed for the installation of 8mm bearings, enhancing its performance and durability.
However, it is important to note that the product is supplied as the frame only, without bearings or mounting screws. When installing this gearbox into replicas from manufacturers other than A&K, slight modification of the gearbox shape or the replica chamber may be necessary. It is advisable to be aware of this consideration during installation to ensure proper fit and functionality.
ATTENTION! It is the same shell without bearings and assembly screws.
This gearbox is specifically designed for the installation of 8mm bearings, enhancing its performance and durability.
However, it is important to note that the product is supplied as the frame only, without bearings or mounting screws. When installing this gearbox into replicas from manufacturers other than A&K, slight modification of the gearbox shape or the replica chamber may be necessary. It is advisable to be aware of this consideration during installation to ensure proper fit and functionality.
ATTENTION! It is the same shell without bearings and assembly 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: B014 · EAN: 5904420010180 · Reinforced gearbox shell V.2 (8mm) [A&K] ·
Report safety issue · Responsible person & manufacturer
Report safety issue · Responsible person & manufacturer
Responsible person & manufacturer 

Responsible person for product placed on the EU market:
KRAKMAN P. Kiepura, K. Michalik sp.k. · Pollanki 18, 30-740 Krakow, Poland · shop@taiwangun.com
KRAKMAN P. Kiepura, K. Michalik sp.k. · Pollanki 18, 30-740 Krakow, Poland · shop@taiwangun.com
Manufacturer:
REPLICAS AVAILABLE ON TAIWANGUN.COM MIGHT BE PURCHASED ONLY BY ADULT USERS. PRODUCTS FOR ASG AND MILSIM USE ONLY.
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