I'm not nearly as high speed as the rest of you guys, so here's my very humble submission with specs

11.5" AR pistol
PSA Blemmed lower ($50)
PSA LPK ($40)
PSA Complete upper ($260)
Shockwave pistol brace ($100)
KAK Industries buffer tube
Still waiting on a USGI rear BUIS coming from a friend in Indiana

Roughly $450 wrapped up in this budget build.  Scored most of the parts on sale in person at PSA using the no sales tax weekend and my .mil discount.  Cross posted from the .mil forum.

Looking good. Any plans for an optic? Have you taken it to the range yet?

I've got a Vortex Strikefire coming from my buddy sending me the rear BUIS.  I gave it to him a few months ago, he didn't use it, and offered to send it back to me, so I accepted.

Not been to the rage yet, since I don't have a rear sight, so it would be pointless to go and just burn ammo.

Very nice, how do you like the shockwave?

So far it's pretty cool. I've got it pulled all the way out right now.  It's solid, well built, and maybe printed on a 3D printer

They are well made and I like it better than both Sig braces.  It is not printed on a 3D printer.  It is molded, you can see the mold separation lines.