Quoted:
I was looking around the fox valley for a brass punch set. but i could only find a steel set that was full of punches that i didn't need. so were in the fox valley/green bay area can i find punches to build a AR lower. most specifically a brass set. i have the rest of the tools i need but the brass punch set is something i couldn't find at home depot,harbor freight or sears. any ideas?
The first one I did, I was excited and in a hurry ––- and believe I found Sears did in fact have a proper roll pin punch set (with the dimples) with 6 or 7 –– and on their web site you can check store availability –– but it ended up not being on the shelf as it said it was. If I recall correctly, I found them at Ace –– but this was a big Ace down here. I had tried other places –– harbor fright had punch sets but not the right kind. It was an entire day of searching for tools as I was going to do it that night. You want the right ones for sure.
I am of the opinion you don't need a brass set. Of course, some of each would be good to have long term. Take your time, you'll be fine.
If you have a Grainger up there, they may have them.