Hello. I was wondering if there any experts on here in the field of firearms laws of the ATF. Are there any special FFL licenses required to sell scopes, foregrips, reflex sights, magazines, lasers, and ammunition? I've recently picked up a hobby of buying, trading and selling 'toys' and 'accessories' for AR-15's. I just want to make sure everything on my part is good to go. I don't sell any uppers, lowers or anything like that. The only thing items that I think might be questionable are buttstocks and buffer tube kits. Any advice would help. Thanks!