Sorry if I'm being a bit of a killjoy, but the 40 - 60 dollar range for ballistic quality helmets just seems way too low.
Random Google Search On "Ballistic Helmets"
Maybe They're overpriced on the website, maybe you guys got a steal of a deal. But I wouldn't go trying to shoot yourself in the head with a 9mm to prove it is ballistic material. Come to think about it, shooting oneself in the head with a 9mm with any amount of protection could lead to sub-optimal results.
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TM SR-16 *Stock*, And A Shitload Of Mags
Apparently, a hand grenade does not belong in my toolbox. Nor does a hand grenade with the pin pulled belong in someone else's toolbox.
When In Doubt, Empty A Magazine.