What do you want to know?

I've been a gunsmith for 40 years, and I'm pretty good at it. I've worked on a couple thousand firearms over the years. I'm happy to answer any questions you may have. <br><br><br>EDIT: I've gotten a lot of questions so far, but most have been "what's your favorite _____?" I'm not trying to be a smart ass or sarcastic, but I would appreciate more specific questions relating to firearms. <br><br><br>Example; I've been offered a used AR, what should I look for?<br><br>Example; my Glock isn't reliable, what's the most likely cause? <br><br>Example; how can I modify an M1 Garand to make it more accurate for hunting? <br><br><br>Thanks