I'm under contract to do yearly inspections on the Presidio of Monterey Police Dept's firearms. Other than the beat up M9s and the worn out M16A2s they recently turned in their 2 M24 SWS for 4 brand new M110 systems complete with all of the goodies. One thing I found very interesting was how much the rear of the KAC suppressor leaks. The isn't a complete weld around the mounting collar so all that pressure is being pushed through that gap.