There are TONS of these fake gun supply sites online now.
There should be a law, you know? An ENFORCED law.
Anyway, watch out for pre-covid prices, items in stock that NO ONE else has, and so forth. If it sounds too good to be true.............
And the clincher is: Act like you're making a purchase, get stuff into your cart and proceed to checkout. HERE you can find out the nitty gritty. If the site takes only PayPal friends and family, Vimeo ?, bitcoin and other untraceable payments, SKIP IT. If they don't take credit cards direct, most likely they are NOT legit.