Actual buffer motors have much longer shafts and turn slow. I think I would look for a 3HP motor as buffing can really lug a motor.
I would think that in a small gun shop a 3hp buffer would be overkill. We have been using Baldor 1hp 1800 rpm buffers for many years with complete satisfaction. Baldor makes a good product so maybe that's why we have been satisfied.
Martin,
If you had the opportunity to use the one I suggested, you would love it. I guess if you are doing little bitty parts it doesn't matter.
A 1hp bogs down too quick with rougher compounds