Ontario M9 Bayonet

[sergeant major]

I picked up an Ontario M9 Bayonet this past weekend at a yard sale. After I got it home and was able to take a closer look, I’m not sure by the grips on this model if it is a guanine USGI M9 Bayonet. I have posted the following photos of the bayonet, I guess what I’m asking is this a commercial copy or military issue M9??? For $50 bucks, the grips just don’t look right to me.