I'm sure some of the senior members will reply, but if not, try calling T/C at "Customer Service: (603)-330-5659" They were helpful when I called them. Here's another tip, if you have to send the gun in, don't ship it in one box. That would cost $$85 to $95 from Minnesota. If you ship the frame in one box and the barrel in another box, it would cost $25 dollars total. The reason being, in one box it's a firearm, in two boxes, it's parts. This was my personal experience. Isn't big government wonderful!