Damn dude , that ' s bigger than mine hard . Quite impressive ! <| sep |> You will never ever get called out bruh . I got my beaters from a guy on this subredddit , with some obvious flaws . I rocked them on some sneaker conventions and even on the streets in berlin I get compliments for them . You safe bruh <| sep |> That Maxim shoot was quite something <| sep |> Stares at username . <| sep |> That was the point . .<| sep |> What happened to wasting no more breath ? <| sep |> Yes , this is my understanding too . I think that the german MP invented the story . Fake news ! <| sep |> One of the reasons that the . 300 blackout is so appealing is that it uses the same mags as a 5 . 56 . So there ' s no need to buy new mags . A . 300 uses the same casing as a 5 . 56 but it isn ' t necked down at the end because the actual bullet is much larger for a . 300 than a 5 . 56 . This means you can use the same mags , bolt group and upper for either , BUT the barrels need to be different . That ' s why you buy a complete upper , because if you just bought a . 300 barrel you would have to spend a lot more time with you rifle switching barrels . I wouldn ' t suggest this , it requires more time and a little bit of experience working on rifle assembly . But if you buy a complete upper , all you do is swap them out . Quick and easy with no tools required .