My friend bought this Piranha R6 and i have to say it looked pretty sweet. Not to long after he bought it it started leak Co2. All that had really happened to it was we dropped it once. While my other friend had bought a walmart gun and also dropped his and it was working fine.
Overall it is a pretty good gun for the price i don't know if our situation was just the gun we got, but since then it has been weird with Co2 and the problem continues.