In all honesty unless they have made huge and I mean huge improvements in them over the past 3 months, they are absolute crap.
They have a tendance to break in the barrel, surprise surprise common paintball fault for the past 20years lol, which then gums up your internals, hopup and so on.
Saskatchewan Age Verifier! Contact for more Info.
http://airsoftcanada.com/showthread.php?t=174161 - Honour & Respect your fellow players! #Airsofthonourandrespect