![Centring O-ring for TopMax Hop Up THopUp chambers Centring O-ring for TopMax Hop Up THopUp chambers](https://air.viruisis.lt/98769-large_default/centring-o-ring-for-topmax-hop-up-thopup-chambers.jpg)
Centring O-ring for TopMax Hop Up THopUp chambers
Centring O-ring for T-HopUp chambers. These O-rings are designed to improve the alignment of the T-HopUp chamber to the GB, improving the tightness and stability of the T-HopUp chamber itself.
The kit includes 3 centring o-rings.