Decided that I'd rather have a 2nd tracer unit to accompany my Acetech Predator...so got a package from Asiaairsoft.com today with a knock off of a knock off of the Knights Industries surpressor. It's quite a bit smaller and no markings what so ever, but build quality seems to be ok so far and will test it out soon.
But on a sour note, I also was expecting a helmet mounted flexible light...but I guess they forgot to put it in the package, the invoice shows two items, but only one came. So hopefully the boys in China will sort things out for me as they have been quite helpful in the past.
The tracer unit is a Army Force Knights full auto tracer for £30. (So will see how long the little fella lasts)