everything looks good, i would also look at magpul and tangodown rail guards. If you mix and match, it makes ur rifle more unique. As well as check out the low pro gas block by stag. You have a stag already,you should stick with the parts that go with the manufacturer. Thats just my opinion, if you need ideas, check out the thread "evil black rifles" mine is on there. also check out the tango down fvg it is cheaper than the troy, and it has a pocket for a pressure switch. hope this helps. you picked a good maker for an AR.