I'm not saying your observation of a bolt face isn't correct, but its not "The" bolt face logo of Arfcom. The bolt face is crooked and looks different. as you can see side by side....
(now this is all in good fun)
Look at all the products out there that have small little changes/tweaks to allow it to not be "copy right infringement" All the android phones, PC's/Desktops, Different vehicle manufactures, Levi vs lucky, sony tv vs toshiba. AR15 (5.56) vs AR15(.22)
And how can we forget the Vanilla Ice "Dun duh dun dun dun didle dun dun" vs "Dun duh dun dun dun didle dun da"
It is supposed to be a 1* (Asterisk)
besides, if just having a resemblance of a bolt face would cause for infringement ARF could sue any AR manufacture that took a picture of the bolt or anything showing a bolt, training video showing ho to clean a bolt and they show a bolt, etc...