My Barrel is leaking from the rear.
The green or red gasket inside needs to be replaced. This is a relatively complex repair: click here to see a video for cleaning instructions, or contact us for factory assistance.
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CoolFire Trainer Barrel
My Barrel is leaking from the front center of the fill port.
The fill port needs to be uninstalled from the barrel, cleaned by blowing compressed air through it in both directions and re-installed. This is a 2-minute repair that requires a fill tip tool.
My Barrel is leaking from the front around the fill tip.
An O-ring needs to be replaced. This is a simple 2-minute repair: see page 18 of the user manual.