Mike, I used the body of a 5/32" aluminum rivet to make the bushing. I forgot to mention in the previous post that I also replaced the spring with one taken from a butane lighter (under the flint), cut to the same length as the original. Together those two changes absolutely transformed the trigger. I really can't recommend it highly enough. The pull was pretty smooth to begin with so I had waited a while to do it but now I can't imagine how I got along without it. So yeah, Wayne, don't wait!