The MM4 Xpc system uses the most powerful 4-stage turbine on the market (same as the Q4 PRO). This system is recommended for those who want the extra power available. As with the MM3, there is no noise reduction feature, so this should be taken into account if noise level is a factor. Please note* the Review was done before we added the Pattern Control Knob so it shows our older, discontinued spray gun, however it is a very helpful, independent review.
