MonkeyCMonkeyDo, no. It screws to dedicated mounts in the sides of the helmet.
My take is it has very limited ability to absorb impacts but might keep the gravel out of your face. Proper full-face helmets have pads that sit on your cheeks and most also have padding inside the chinbar, so they can absorb front-on impacts much better.
I also ended up wearing mine without the chinbar most of the time, as it sits in front of your mouth and cheeks and on slow climbs it felt noticeably hotter than a normal helmet.
It’s got quite a bulky outer shell with a really jagged back, which I suppose could increase your chances of a rotational injury. You’d have to be doing backflips or something though.
I now ride with a Fox Flux, it seems to fit my head shape much more snugly (which should be the first consideration), and if I crash I just stick my arms out.