Gang: I have a Leupold Mk 4 LR/T 3.5-9X40 that I want to mount on my SR9. I know that the SR9 is the "civilian-legal" HK91. So I am guessing that I could get a mount that would secure to the HK91? Any suggestions? I want to keep the rifle as close as possible to it's German lineage as possible! I know, I know, the Leupold is made in the USA. I just don't have $2,500 additional dollars for a Schmidt & Bender!