Hi everybody. I'm new hear and this is my first posting. I buying an FS2000 Standard tomorrow from a major FN dealer. I have heard nothing to indicate that the rifles themselves were originally built for a military contract. Perhaps the optics themselves were but I doubt it. The Standard does not have a Picatinny rail mount like the Tactical. From what I was told by the dealer and Mike at FNH USA, the Standard has a proprietary mount, exclusively for the FN made optic. I have to admit I have not seen a Standard in person, but it just looks SO FREAKIN' COOL! When I was a kid, I remember thinking, hoping, praying that someday in the future, I could have some super modern weapon like in Aliens Looks like the future is here. I hope its worth it 'cause I just sold both of my beloved AR's! 8)