I do have a couple questions though. I have never noticed these issues before but maybe I havent looked?

When I lock the bolt back without a mag in it, then tilt the rifle to either side the bolt slams shut? Fix?

Also if you "ease" the bolt forward it wont lock up unless you hit the assist, if you let it slam it is fine, which under normal shooting conditions wouldnt be an issue but for clean/lube/inspect it bugs me. I have a scope that is to long for the rifle so I have to reach for the charging handle, but when I lube it I like to manual molest the bolt a few times to get the lube evenly spread I do need a cantilever mount I do believe!