Correct width upper for my lower Fulton/Aero

[ar-mountaineer]

So I’m ready to buy my complete upper. I was dead set on getting an aero precision then I started looking at photos of builds online. It appears that the bottom of the aero is going to be much skinnier than the top of my lower. Then I started looking at the Fulton builds and it looks like it would fit much better. I basically must get a complete upper bc I have no desire to assemble one myself. Getting a matched upper for my 80 lower is a non deal because I want a quality complete upper. The ones they offer in complete uppers seem like the barrels are not up to par. My 80% lower is from Daytona tactical. Do any of you have any experience with “wide” lowers and care to offer a suggestion. My 80 is ready to go, already milled out. It looks like if unwound have gotten an 80% arms lower the aero would fit much better. 

Basically I want something that will look seamless or as close as I can get. Again, I don’t want to build an upper from a matched set. 

Heres a pic of the assembled lower. Thanks in advance for any help  

 

[COBrien]

Measurements of your lower (outside-outside) would be helpful.

You shouldn't be concerned with quality on a Fulton Armory complete upper -- every one of theirs comes with at least a Criterion Hybrid-weight barrel installed, but you have the option of choosing a different barrel -- any of the ones they stock and sell individually. Their uppers are built-to-order, so you get lots of choices.

[ar-mountaineer]

17 minutes ago, COBrien said:

Measurements of your lower (outside-outside) would be helpful.

You shouldn't be concerned with quality on a Fulton Armory complete upper -- every one of theirs comes with at least a Criterion Hybrid-weight barrel installed, but you have the option of choosing a different barrel -- any of the ones they stock and sell individually. Their uppers are built-to-order, so you get lots of choices.

Yes, I gather Fulton is very well regarded. The quality from Daytona tactical in their complete upper is what I am trying to avoid. 

 

I can can get measurements tonight. 

[ar-mountaineer]

I don’t have 32nds on my tape but I would say it’s 1” and 11/32nds or 1.34”. It is over the 1 5/16th line and not to the 1 3/8th line. 

 

This is right above the rear takedown pins. 

[ar-mountaineer]

Just looking at the photos it appears the Fulton is the proper “style”. I’m basing it on the takedown pin holes and the shape above them. A known constant would be the takedown pin length, correct. Below are pictures or each and also a picture of what I am trying to avoid. It is a pic of someone who used an aero upper with a lower “similar” in design to mine. 

[ar-mountaineer]

For anyone wondering. 

The daytona tactical 80% lower is 1.359” (finally measured with a caliper). Above the rear takedown pin.

Fulton Armory upper was stated to me at 1.268” (from the FA shop manager) at the rear takedown pin.

With a difference of about .09” it will leave slightly more than 1/32nd” on each side. I can live with that.