Reputable sellers

Hello, I'm looking to get a ballistic helmet. My unit doesn't have any available to the point where guys are bringing busted pasgats. I need a good helmet that won't break my wallet. Don't need some super high speed shit. I just can't find any sites that would have an ACH/ECH without being scams. Any direction would be great.

EDIT: I'm looking into grabbing a Galvion A3 as they are reputable and have been used to good affect so far as I can tell. No idea on lead time but it seems to be the best helmet I can get in my budget without inviting the unprotected brain soup.