First of all I'm 27 and never been charged/arrested. Live in South Carolina so I'm ok. I want to buy a supressor/silencer for my s&w m&p40. What are my options? I don't mind paying for quality. What's a good threaded barrel? Storm Lake? What specs do I need? I don't mind the cost or waiting 4-6 months for approval. Our local sheriff is awesome too. Thanks guys!