I've been assembling a pump mag and I've been running into issue after issue and looking for any advice tips or tricks for how you got your pump mag to work..

I have:

Pump milled ULE body
Pump milled rail
Rain man Pump kit
Reverse minimag valve w/ efficiency insert

So I started assembling it and ran into the pump sticking, proceeded to dremel a wider groove and solved the issue until I put the body on. Dremel'd some more. Problem solved. Then I realized it was still shooting on semi. Then the pump stroke started to stick again..

Anyways looking for some advice/help, because I am beyond frustrated and thinking about giving up and parting it out.