Just something I was looking to customize a bit. I am going to put a scope on it at some point here and was thinking a little bit wider handle with some added grip might be a nice touch. Like you said though there hasn’t really been anything wrong with the stock charging handle. I just didn’t understand how the manufactures are saying it doesn’t fit and yet there lots of reviews that say the Raptor fits the M&P10with no issues and then on the same make of gun others will say they had to modify it to make it work.