What's a top tier tactical shotgun side carrier ~

[Capybara]

James Gunshorts demonstrates that on one of his cheap-o shotgun builds.

Yes, I saw that one too, the Maverick 88 Torture Test. Those cheap ones are a super simple product but to get it right, it actually has to function under use. You know the Chinese just looked at the Esstac and said, "We can make that super cheap and just as good" but being in China, they never have an opportunity to actually mount one on a shotgun and shoot it since the CCP doesn't allow it's subjects to own or have access to guns.

Generally cheap gun parts are a bad bet. Mounts, QD, slings, lights, all that Amazon Chinese crap is just junk made for Airsofters.