This is not ordinary Polycarballoy and POM materials, this is an improved Polycarballoy material with higher hardness and better wear resistance. Don't worry about it being worn out.
Pulled the trigger 60,000 times, and the side seal was only about 0.01 inch worn.
The improved side seal has the same super wear resistance as Stainless Steel and better sealing to keep the fluid HOUSING clean.
This Side Seal does not wear the Mix Chamber and avoids the high cost of replacing the Mix Chamber.
![IMG_20201013_174718[1]](https://ae01.alicdn.com/kf/H0472a075596c4784a1ef87e991d81029q.jpg)