Walmart.COM is a reseller for about a billion companies...
I literally search anything with a VERY NAME SPECIFIC SEARCH... such as "Holosun HS510C" and there it is...
https://www.walmart.com/ip/Holosun-...ex-Hunting-Rifle-Red-Dot-Sight/262762956About 90% of the time it will be the cheapest price on the web... and Walmart is not anti 2A like Amazon.