ValleyCook

I'm sorry, I'll retract that last statement. I didn't mean to hurt your feelings... It's just perspective I guess?

Not gouging... it's Brownells lol they are one of the MOST expensive sites to order just about anything from. Hey bud, since you CLEARLY have all knowledge on every aspect, why don't you run for president, you have my vote👍

Put your glasses back on and look at the date of the question at hand Sir...08/21/2021. Funny how you missed it when you had to quote the thread. Also you don't need to be badass to answer such an easy and general question. Y'all named approx 3 or 4 of the several HUNDRED companies that ARE NOT compatible lol and I'm the one splitting hairs, I know 😂. He asked a basic question and I gave a very basic answer. Sleep tight.

So now y'all talking about the nuances of barrel nuts, tpi, etc. The question was can he slap different uppers on his single lower at the range? The answer is still YES.

I'm not trying to split hairs here, but here we go... If it's dpms then why have an "armalite cut" as you put it? Also, I've heard and seen strange things over the web and from friends about uppers and lowers fitting correctly. When going same to same, if there are any issues it's most likely a tolerance issue than incompatibly 🤔

I've seen them on Brownells as well... Close to $.10 ea for 1k tho🤮 They seem to price gouge every chance they get... But then again if they have it and nobody else does whatcha gonna do?

Yes, dpms to dpms or armalite to armalite. Most out there are dpms, look for the flat or radius at the rear of the upper receiver

https://www.80percentarms.com/product_images/uploaded_images/33-pnqy4j3ys-qv-6l6rlnvsq6zu8txhp5sv6lhi60e.jpg As long as they are dpms to dpms or armalite to armalite they are compatible.