Machine shops or starter/alternater shops will usually blast something for you at a price.
I don't recommend glass beads for painting. Glass beads only peen the metal, they don't rough it up enough. Blasting with aluminum oxide works best. It actually cuts the metal and gives the paint something to grab. I have seen guns painted after being glass beaded, and sometimes the cured paint will slide right off.
Good Luck,
Lee
http://www.thearmsroom.com
I don't recommend glass beads for painting. Glass beads only peen the metal, they don't rough it up enough. Blasting with aluminum oxide works best. It actually cuts the metal and gives the paint something to grab. I have seen guns painted after being glass beaded, and sometimes the cured paint will slide right off.
Good Luck,
Lee
http://www.thearmsroom.com