yes, when I worked for Freeborn Bikes we were the exclusive UK importer, and brought in their levers and hubs
when they stopped production, we signed up Canadian brand "Dangerboy" who did similar levers, cool handlebar grip end plugs, bashguards and other CNC machined trickery like their stems
can see the bash and bar end plugs on my old banshee scirocco in this pic
Most brakes are adjust on the fly now anyhow, so why do you need the razor rocks? I'm assuming you are talking about the levers that had a pivot and adjusting screw in the lever itself so you could adjust on the fly. In those days most brakes required a hex key to adjust reach. Now they would just be unnecessary weight. I haven't seen any in years.
I agree, however i dont have new brakes with easy adjustment dials, I use trusty HFX9s that work brilliantly for me. I have 1 razor rock lever so am just after 1 more for the other lever, thats all.