Okay, I got my new MP 15 sport 2.
And I was field stripping to check everything out, On reassembly, I put the bolt back in and spining it to see the beveled hole to put the bolt cam back in and there wasn't one, Makes it a little harder to put back together....
My first M16 issued in 71, Had that bevel, I was thinking, Something is missing....
Maybe I'll try and find a bolt with the bevel on the Cam pin hole....