Feinwerkbau - trigger replacement

Custom Feinwerkbau trigger replacement.

Tested with:
- Feinwerkbau 600-603

**If you like my designs and don't mind I would be happy about a beer. (Tip Designer)**

v6:
- better fitting thread
- increased grip on trigger

**Additional requirements**
* None

**Printing**
- Layer height: 0.1 mm
- Support: no (not needed!)
- Infill: 100%
- Brim: yes
- Material: PETG (preferred)

**Assembly**
After printing remove the brim material and make sure the little hole is clean/empty.