They used to offer them for civilian use, but all of their production is currently allocated to the US military (mostly the Marines). If I recall correctly, they are rated at 78 dB, so a bit quieter than current production streetbikes. You can still find them occasionally on eBay, but they tend to command a premium price. Essentially, the chassis and such are all Kawasaki KLR650, with HDT's engine. If I recall correctly, the MSRP on the civilian version was ~$8000.