Parts Recommendations for Build

[Captk]

I am planning to do my first build of an upper and am looking for advice on the parts I need. I had purchased a Grendel upper 2 years ago, it was very accurate but had a bunch of issues with extraction that I was unable to resolve so I sold it. So here I go again. Here is what I have ordered so far or can pick up locally. I am looking for suggestions for the additional parts I need that won't break the bank. This is for a bench shooter.

Ordered:
Brownells 24" barrel and bolt, will cut down to 20-22" and re-crown
Free floating tube rifle length
Rifle length gas tube
RRA A2 butt stock kit
RRA NM 2 stage trigger LPK
Spikes Punisher lower and Spikes upper (to be purchased locally)
charging handle (to be purchased locally)
spur grip (to keep it legal here in NY)

Need:
Gas Block, .750 and adjustable
full auto bolt carrier
10 rnd mags

Did I miss anything?

Thanks, Ken

[pinzgauer]

I'd be thinking Giesele or ALG trigger group for the money.

Daniel Defense, LMT, or BCM FA bolt carrier. You could probably buy a complete BCG and sell the bolt for cheaper than you could buy a lower quality FA Bolt carrier

Rather than hand guards I'd be looking at ALG or MI free float tube. Lotta bang for the buck.

[Captk]

I did get the free floating tube, not hand guards. I fixed that in my post.
I got the RRA LPK with 2 stage trigger for $95 so pretty happy with that.
I'll check out the bolt carriers you mentioned.
Thanks!

[am4966]

Adjustable gas block you have a a few options, but if you plan on shooting it alot I would spend the 120.00 and get the SLR. If you need one for less money you have Syrac not much cheaper, JP and Seekins

[Grendel84]

http://palmettostatearmory.com/index.php/catalog/product/view/id/18213/s/ati-ar15-bcg-8620-cl-carrier-c158-bolt/

PSA BCG for $70, and you could sell the bolt for at least half of that

The gas block is up to you, SLR does look nice. I use JP blocks, but they are sometimes too big for small handgaurds