Modify precision shim set are precision cut to acheive exact spacing. Shims are one of the most important parts in your gearbox. They are so tiny yet vital for you airsoft gun's performance. They are responsible for spacing the gears properly to avoid premature wear. Shim Sizes: 0.1mm, 0.15mm, 0.3mm, 0.5mm
Modify Shim Set Specifications:
- Material: Steel
- Manufacturer: Modify
- Model: MOD SS (GB-05-39)
It’s great, they work great. Some people complain about there not being a differentiator between sizes- which is kind of true but also not. There are two sizes - large and small circles. There are also two widths - thin and thick. Between the combinations it’s easy to figure out. If you’re smart enough to shim correctly then you are smart enough to differentiate.