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Prometheus Gearbox Adjustment Shim Set
Prometheus Gearbox Adjustment Shim Set


Prometheus Gearbox Adjustment Shim Set

Code: 4571443188694

In stock
Order in for delivery as early as

Product description

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● Compatible with ball bearings with an outer diameter of φ5.8mm!

● Set includes 5 types x 5 sheets of 0.1mm, 0.15mm, 0.2mm, 0.3mm, and 0.5mm shims!

Mechbox Adjustment Shim is an essential item for gear setting in electric guns. This set includes 5 different thickness shims: 0.1mm, 0.15mm, 0.2mm, 0.3mm, and 0.5mm, allowing for precise gear adjustments and optimal performance. Even for fine-tuning requirements, combining the appropriate shims will achieve ideal operation. In the case of an 8mm diameter, with an outer diameter of φ5.8mm, it avoids contact with the flange of the ball bearing, making it a necessary item when using ball bearings.

*Please note that adjusting the mechbox requires precise assembly by individuals with specialised knowledge and skills. For beginners, it is recommended to consult experienced individuals or retailers. Improper adjustment may lead to performance degradation, damage, or deformation.


■ Compatible Models:

・Tokyo Marui standard electric guns and Next Generation Electric Guns' genuine gears

・Our EG Hard Gear series

・Other gears and shafts with a diameter of φ3mm

■ Set Contents: 0.1mm, 0.15mm, 0.2mm, 0.3mm, 0.5mm (5 sheets each), total of 25 sheets


・Inner diameter: 3.1mm

・Outer diameter: 5.8mm

We will endeavour to despatch your package within 24 hours although at peak times this may take slightly longer. Orders for RIFs may take 48 hours as we test and chronograph each rifle before shipping.

Our couriers only deliver Monday to Friday between the hours of 8am and 6pm (0800 - 1800 hours) except for local and national holidays. We do not directly control the couriers and we cannot obtain a specific delivery time from them. Delivery may be delayed by extreme weather and events and again is out of our control and accept no liability for delays caused by this.

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