We're not here to give half asses/hack type info. Building a gun is a serious matter that needs to be done right and taken seriously. You as a builder need to completely under stand everything for your safety and everyone else's safety around you when you operate your weapon. I wasn't trying to be a dick when I posted that meme to you before, honestly it was keeping me from being a dick. THe guys that have been offering you up info are probably thee smartest guys I know when it comes to AR's and guns in general. I came here green, I'm still not a pro, but I've learned a metric shit ton about ar's here. I'll tell you another thing when one of them helps me I stfu and listen and don't take their advice for granted.
Make it a great day.......
ps if there's somthing you don't understand or grasp you tube it, there are tutorial videos on there for just about anything! I'm sure if you googled or you tubed "how to install gas block on dimpled barrel" or somthing to that nature your reply wouldn't have been "and just let it hang there"....