Originally Posted by D0CT3RPhil
I just recieved that barrel you were talking about (Tiller is the company) and I just have one problem....it does'nt fit! Now it is indeed the right threading but the barrel does not fit snug against the gun itself it sticks out about 1.5CM (apologies for being Canadian). I have not tried the barrel so I cannot comment on whether or not this is going to render this barrel useless. I imagine that the barrel will still work fine but it wont look too great.
Just to make sure the G2+ has different threading than the original Zeus. Why they changed this I have no clue. Take a look at the factory barrel and make sure it is the correct sizing.
The one thing you can do is go to the hardware store and get a thick oring. This should fill the gap and keep the barrel from vibrating loose.