Captain O-Ring Players Kit Large Color Coded Master Paintball Oring Kit - 18 Sizes 360 Orings (Most Common o-Ring Sizes for Paintball Markers and Equipment)

These seem to be good quality.

what i expected

If you are looking to rebuild you older marker look no further. This kit has just about every size you would need outside of some of the more specialty sizes (which you can order from them also). The color coding makes it very easy to find what you need and keep the correct sizes where they go. I tried another brand and had nothing but leaks. I swapped over to the captains and have had no issues since. I would not hesitate and just order these if you are on the fence.

Bought these a while back to make sure I had a fix for when my o rings went bad. Low and behold my regulator blew its o rings yesterday. Manual stated that they were polyurethane o rings and I wasn't sure if it would have been an issue to use these instead. Jon was quick to answer my questions and assure me that these are more than capable of being drop in replacements for polyurethane o rings. Now you know if you didn't! 5 stars - will definitely buy again.

Bought this in preparation for a big paintball event I recently attended. Used this kit to replace o-rings in multiple markers throughout the weekend and had no reported issues throughout. The smaller o-rings I couldn't get to fit properly in some cases because they were a little thicker than the stock ones, necessitating getting o-rings from elsewhere. But for the rest, ranging from hammer o-rings to bolt o-rings, these were a direct drop in replacement and worked great. This kit will probably be my go to whenever I need to rebuild markers from now on.