Mine came with a screw already missing. I emailed them and they said they would send 1 out for me. Never got it. Emailed again 2 months ago and got no answer. Well, last weekend my pipe fell apart from the end (common problem with big gun). Now they wont even answer my repeated emails. Replacement parts (screws, spark arrester, end cap) cost almost as much as replacing pipe ($175). I am throwing my pipe in the trash and buying another brand. I am not made of money and this hurts. Please dont buy from them.