m9 Phrobis chervron bayonet

[marine01]

I just received one of the Chervron bayonets, and the scabbard that it came in has been altered, the top strap on the scabbard to hold the bayonet has been brass riveted (not sewen) on the Bianchi belt clip and also has different webbing, I guess my question here is could this have been done by the military or does anyone think that maybe a civilian altered it and does it take away from the value of the bayonet?