The Pace/Dualco system has a smaller nozzle than most of the greaseguns available today which seem to be copies.
I think I've ordered about 10-20 of these from Pace over the last couple of years for the different kinds of grease I use in the workshop and because I keep dropping them, hard....And because they're one of those things that customers see me using and instantly want one.
I have the Evans version (same as Pace) and have made a longer nozzle for it and also to fit grease nipples. I have made a better piston as well to use it with oil rather than grease.
They are very good.