I just noticed something interesting while I was installing my RIS II - the NSN number on the top rail appears to have a typo. I don't have my camera handy but the NSN on the top rail is 1005-01-547-264 while on the inside of the bottom rail it's 1005-01-547-2624. The NSN on the bottom rail is the correct one (I looked it up and the NSN on the top rail doesn't have enough digits for a NSN#). I know my RIS II is genuine but I just thought it was interesting. Anyone else with an RIS II have the same typo?


















































