The UK's Finest Independent Forum for Shooters and Gun Owners. Est 2010.

Hungarian semi-automatic, long recoil operated, bull pup anti material rifle chambered for the Russian 12.7x108mm or the US .50BMG ammunition. The magazine contain 5 rounds and (according to the manufacturer) can penetrate 20mm rolled homogeneous armour at 400 meters range and is really accurate up to 1500 meters.

http://www.liveleak.com/view?i=b97_1296268208

I have seen this before and this film clip shows a bit more footage this time so you can see the recoil system in action.