I know alot of people like to run square tubing for there long arms, and rear coil conversions. I was thinking about making square tubing inserts, with different thread sizes, left and right hand threads. Would anyone else be interested in these. Tubing size would be 1.5" .250 wall and 2" .250 wall. I am making some for myself and while I have the lathe and mill set up I am going to make a few extra.