AR 15 questions 1. Is it cheaper to buy the complete upper and lower kit and then add what you want to it ( like a different buttstock or hand guard) or is it cheaper to buy each individual part? 2. What complete upper kits would people suggest? (I want an 18 inch barrel) I am into shooting at the range and in the woods. I am looking for $400 or less 3. What lower parts kit would people suggest? I am looking for $100 or less Mosin nagant questions 1. what is the best way to clean off cosmoline? 2. Is there anyway to fix a semi-wiggly trigger? 3. What is the best way to make the wood look clean and smooth? Would pledge work? Thanks!