@RF2200 Thanks I was stationed in San Antonio like 3 times and with some of my injuries cold makes life a lot harder!
Now to weigh in on the “important stuff”.. Personally, I would never run a 1-8x on a 5.56/.223 platform with 20” barrels and shorter, even if I went with a free float handguard and a heavy barrel (chambered in .223 Wylde so I could run 62gr and heavier bullets. I have had pretty good luck with the Burris 1-4x optics with the Fastfire IIIs on top, a standard fixed power Trijicon ACOG (4x32). I even like going with just an EO Tech 512 Holo sight with an Aimpoint 3x magnifier in a Larue flip mount or Aimpoint Comp M4 Red Dot which I actually run with a Primary Arms Magnifer.
I mention that because I was so impressed with it that I git one of their .22 LR 1-4x optics and a 1-6x centerfire one. I am usually one to harp on guys for cheaping out and going with something cheap\stupid on their $1K+ rifles like Bushnell, Leapers or NC Star optic (they would be better off spending that money on ammo and learning their iron sights IMO). But I have accepted and now preach the PA gospel (I also like Vortex’s Ted Dots in that price range). You should seriously check them out...
Now I if I were to drink the kool-aid and finally go with one the new fangled chambering I would go with .224 Valkyrie in a 22” or 24” barrel and run a 1-8x optic all day long.