I just obtain a Raptor 6x night vision scope. Wondering if anyone has messed with them? I have two options of rifles to mount it two, a HK 416 or M1A stock gi rifle. What do you think makes a better platform? I would probably be using it between 50 and 100 yards. I think cheek weld would be a issue with the M1A, and cannot get another stock at this time. Any thoughts?