Still having problems with my HW100.

Started out by pinching up the barrel retaining screw (the barrel was rotating slightly when removing the moderator). It was suggested that I might have damaged the 12x1mm seal. Stripped the gun, replaced the seal. Also replaced the small seal on the regulator input where the cylinder goes into the main body.

Putting the gun back together, it seems like the air is not getting from the cylinder, into the regulator body. When tightening the cylinder, there is no hiss as it seals. Also, when removing the cylinder, the is only the slightest of hisses (nothing like the amount the first time I removed it).

The gun cycles properly, it's just that there is no air in the system.

Any ideas?

Cheers,
Les