I have played with most from Steyrs to MPR's and I now have an Impact, but for my money a HW100 all the way. they are very accurate, absolutely bullet proof and will last for ever.
Just get a single shot adapter and they are perfect for HFT, my personal favorite is the KT.
Somehow I made TEAM ENGLAND 2012 and 2013
Illiterate writer for AirGunner
The real Kung Foo Panda.