@5W ok well the parts kits are assembled.

trying to assemble an upper without barrel nut grease is like trying to do your brakes without brake fluid on hand

you cannot accurately torque your barrel nut without it and there will be nothing preventing the steel from seizing to the aluminum

And then skip forward to the part where you fuck up torquing the nut

Bro my engine doesn’t need oil yet I just wanna make sure everything runs correctly first before I waste 11 dollars

yea im just gonna put the oil filter on to see if it works haha

I’m looking forward to the part where he goes to his first range trip and the gun is either horribly inaccurate or unreliable and he tries to blame the parts

or the classic castle nut walks off

Faxon and aero are meme brands

Literally everything I've seen shows them having plenty of wiggle room to do it without grease.

you are missing the point

You're on the tight side of tolerance, congrats that's a good thing. Lube it up

the grease isnt essential for ease of handling, its essential for other reasons, it just happens to help with fitting

Damn dude

You’ve been watching some dipshit on YouTube filming in his dim house with a mattress on the floor in the background as he mumbles into the camera and fumbles with parts one handed

you are torquing a (likely) steel barrel nut onto an aluminum thread

or at least different grades of aluminum

this *is* something you can fuck up, horribly

Fuck it it’s just a gun

Do you have the barrel nut and handguard yet?

inb4 he pins the gb before putting the nut on

I wasn't going to torque the barrel nut, jesus.

ngl i've done that before 😔
but it was just set screwed

Damn I've done that before

And yes, I have it.

But it was the metal ring on t91 handguard

Have what

it only damaged my pride, nothing else

Pinned the flash hider with parts missing

The handguard. I have everything to make it functional aside from an optic.

And my gas block has set screws.

Do you have headspace gauges?

Nyet.

No AR15 Lego 'builder' has headspace gauges

Correct

i mean im a hobby gunsmith and i dont have headspace gauges

I have an AR15 and I'm a Lego builder and I have never headspaced a gun

if my shit blows up that will be my punishment

And yet they continue to have kabooms on ar15 snob free

Heres a mockup. Everything forward of the receiver is obviously not torqued.

Tight is more common than loose anyways