Hmm, that might be one possible solution. It uses an o-ringed interface block that is held in place, like the powerlet, by the original housing that I was planning on cutting away, or just fabbing a new clamping plate to replace. I'm not sure if the majority of the leak is coming from the interface ...

Greetings all. I've been lurking here for a while, but have yet to find anything similar to what I'm trying to do. Basically I'm looking for ideas on the best way to mount an adaptor to an existing Daisy Powerline 990 hammer valve body. The gun originally could be hand pumped, or fed from a 12g CO2 ...