....one of them there application guns for the 3M automix 8307 seam sealer. Yea I know this is a longshot but I thought I'd give it a shot. I would pay shipping both ways plus whatever you feel is fair for your trouble. I've checked the shops around here and can't borrow one and I just don't want to spend $60 for a tool I'd use 1 time. Or if someone has a used one they want to sell.....