I recently picked up a new PTR 91F from CDNN and I currently also have a Vector 93. I would like to switch out the cocking handle on the PTR to the large rubberized version found on the Vector 93. It fits my larger hands better and is easier to manipulate for me. At first I thought the cocking handle was a standard rubberized version of the G3 cocking handle. On closer inspection I see that the Vector version is larger. I have seen two other styles of cocking handles advertised on the internet. A MSG90 and a HK21/23E version. When I compared the Vector cocking handle to these versions they don't seem to match up. My question is what does Vector use, is there a 3rd version of this cocking handle, and where do I find the one I want? Thanks for your time.