Greetings! I recently purchased a used 995TS in an ATI stock. I learned after I bought the rifle about how the ATI stock can void the warranty, and seeing what a "great" job the original owner did installing the stock I can see why. For example it didn't have the buffer installed so the bolt would over travel and hit the extremely hard stock! I'm working on getting the old girl up to stuff and after looking at the exploded parts view I'm wondering if he also lost the barrel frame support. The schematic has the word "optional" in parentheses so I'm not sure if it had or needs one or not. Do I need to call and order one? Thanks!