I have one and if a malfunction is possible it has happened. Brimstone, Que and local gunsmith have all worked on it. I made the mistake of having the barrel threaded before shooting the thing thus voiding the warranty. Beware if you ever see me selling the POS in the classifieds.
P.S. Shooting 30gr will not void the warranty. It is recommended not to use the 30gr because of feeding issues.
