i recently picked up my mossberg model 500 persuader, needless to say i was excited because i had been waiting so long for the money to get it. The gun came with a heat guard that was already installed over the barrel and i thought it was a pretty convenient and nice accesory for the gun. however, a few days later when i picked it up, the heat guard just kind of fell off im pretty sure it was just because of a crappy welding job by mossberg, cant think of any other reason besides bad luck im just gonna have a friend of mine weld it back on, but has this happened to anyone else who had the heat guard already installed when they purchased it??