Building a 6mm br or 6Dasher on a Deviant short action. As bought, it has a round bolt knob, and looking at Defiance Machine site, they sell other bolt "handles/knobs" . But, if the pictures are accurate, the bolt knobs have male threads. My handle's knob has female threads to screw onto the handle . Am I missing something? I don't see how the knob can be replaced with what's shown on their site, but I'm sure it's my ignorance...! rsbhunter@yahoo.com