I LOVE GUN PORN!!!
Welcome to the wonderful, fascinating, and maddening world of the Black Rifle. Know ye that Black Rifle Disease, also known as BRD, is VERY real, and you will be infected if you aren't already. As most anyone around here can attest, it's like tatoos: once you get one, you can't stop (or at least it's VERY hard to resist the urge!). Me? I have three uppers arriving from J&T this week to mate to some Stag lowers.
Your AR looks awesome, btw, and is very close to what I have/use on my first M4gery setup. The next M4 I'm building may stay more basic, but since it's going to be the kids' gun, it's going to have a BSA on it also. No shame in that... if you're not going into combat anytime soon, that BSA should work just fine for ya. Just don't slam it against anything, and don't let a tank run over it!