Classic Army Hop-Up Unit for MP5
- Classic Army hop-up unit for MP5s.
- Replace your worn or broken unit with this replacement kit.
- Includes everything you see in the picture.
If your hop-up adjustment is not having a big effect on the hop-up of your BBs, then it probably means that your hop-up packing is worn down and i...View full details
A replacement c-clip for most brands of hop-up unit. Made by Ultimate (Lonex). Blue in colour.