Staff Answer
May 18, 2026 - 07:28 AM
Leaks to gun connections are often due damaged or missing o-ring. Check your o-ring and see if it is still in good condition. If you need a replacement here is a link where you can find a replacement for the 300 Series. AR Blue Clean PW909104K Replacement O-Ring Kit if you still need assistance. Chat with us so we can assist you Contact Us
