Built my first AR!!

Niiiiice!

 

Very nice, and congratulations!

Now, jump in and tell everyone how easy it was!

 

Hey, question: why is there an assembled upper and a partially assembled upper (with sight tower) in the both pics?

Cannibalizing parts ?

 

Thought so!

Building another soon?

 

That's what I keep telling everybody!

Next step is to take the plunge into assembling your own uppers and headspacing 'em!

 

Good for you!

Your father-in-law will definitely be a better teacher than my weapons instructor when I had to learn how! Boy, that guy had aspirations of becoming Lee Ermey! My blood still comes to a quick boil when I think of him....no fondness there!

 

I think your rear sight is on backwards, and your front sight is siting below plain with the rear sight. Could be wrong, but it looks that way to me in your pic

 

Looks good so far! Send us all a range report!

 

I thought those were magpul BUIS, if so it will be way off, you'll be shooting about an inch high.

Magpul BUIS are supposed to be mounted on a rail instead of a gasblock. 2 reasons for that....1) a standard gasblock can get hot enough to melt the mount side of the sight, 2) they are much shorter than the sights designed to go on a 'standard' gasblock.

If you want to use the magpul BIUS up front you'll have to get a 'rail height' or 'receiver height' railed gas block. They are out there, but not many companies make them. The cheapest I know of is midwest industries at about $60 I think.

 

Sorry, not trying to be a buzz kill.

I did the exact same thing the first time I built an AR for optics and used the magpuls, don't get discouraged, we all make little mistakes when taking on new projects. It's an easy fix, so don't sweat it, just wanted to make sure you were aware of the issue.

 

Yep, that would fix it.

You've got several options to fix it
1 New front sight
2 quad rail and keep the sight you have
3 new gasblock and keep the sight you have(the taller ones supposedly don't get as hot)