Great helmet upgrade - Team Wendy EXFIL All-Terrain Mandible

This is a pretty slick helmet upgrade. I attached it to my TW bump helmet. It's easy to install and remove in case you only want a bump helmet when you dismount.

This, the helmet, and a cover are lighter than my old dirt bike helmet and definitely higher quality. The mandible itself is very breathable and pretty stiff, but still flexible enough to absorb impact.

The biggest con is that it's tighter to the face than a dirt bike helmet, particularly around the ears. This is a design constraint of attaching this to a bump helmet, rather than making it an integral piece. But that does make this a little trickier to put on than a dirt bike helmet, and the harness buckle is under the mandible so that's kind of annoying. Also, it's difficult to get a cheek weld with a rifle, much like wearing a gas mask, and ear muffs won't fit under it. None of these are deal breakers, just things to be aware of. Everything's a trade off.

The bottom line: if you only need a dirt bike helmet, get a dirt bike helmet. If you have/need a bump helmet (say, for mounting night vision) and want face protection when you're riding, this is a great setup.