Ist off,
DZ that link was great and I do hope a few more read throught the list.
Now as to the orginal question...Oktangon you have picked the top 3 as in ABC.
A= Armalite
B= Bushmaster
C=Colt
Of these I have 3 and they a BM, 2 post and soon 1 Pre Ban because the quality, fit and finish on all are great. They are also the lesser priced and chambered for 5.56 and NOT .223.
This is a point should you be looking at other AR offering....do you want to run the risk of having to buy commercial ammo rather than Mil Surplus
Yes they are Chrome but to me that is a moot point...I clean may weapons and take care of them.
I have another AR that is not Chrome but it is 5.56 and that is my Stoner M4, but you are pushing $1400 plus when you can find then. I figure they only make about 2000 pre year, if that.
This is what or were I would start, Bushmaster A2 Hbar with a 16 inch barrel or the BM Dissapator and start thinking red dots sites and mounts later.
IMHO that way, for $700-800 you will have a carbine you will never have to replace.
They will shot all day and hold good groups out to 200 yards.
For your second, third or forth AR look us up.
Next is optic and all the toys, we will be here for you s a support group and hopefully sway you away from the bad
Just me
Karsten