you can get anything you need at bargainfittings.com
I don't have a local hardware superstore that would have these things, so I can't help, but get on phone and call Lowes, Ace, Homedepot, etc.
ps. I don't have a problem with brass, and that argument can go both ways.
I think it's too bad that everybody's decided to turn on drugs, I don't think drugs are the problem. Crime is the problem. Cops are the problem. Money's the problem. But drugs are just drugs.