Title states it up. I don't care for the "looks" of any of the complete uppers I've seen so I'm going off on my own 
For the lower, I'm starting with a TM 80%.
I'm going to use a GL-Shock-CP - FAB Shock Absorbing Butt Stock. I saw it come highly recommended for taming the recoil.
Is there a recommended buffer or spring for Beowulf?
For the upper, I'm starting with a TM upper. I understand the ejection port needs to be enlarged.
For a muzzle brake, I've read that the Kings Armory KA-0450 is "THE" one to get.
For the hand guard, I'm going with a smooth Hogue Free Float Tube. I'm trying to stay away from the "tacticool" look.
From the above, I'm not sure where to go.
For a barrel, I've heard the AR Stoner works:
Is the above the correct barrel to get?
What about a gas block/tube?
************************************************** *
Edit from here down for on-going parts list. I will not include reload or ammo in this list.
Here is an ongoing parts list:
$49 TM 80% lower ($45 for engrave, anodize extra and tools extra)
$29 TM upper (TM sale going on RIGHT now Sept 2014)
$44 Hogue Free Float Tube Knurled Aluminum (Midway #122407)
$21 AO Charging Handle (Midway #983634)
$10 Del-Ton Gas Tub (Midway #535924)
$40 DPMS Bolt Carrier (Midway #990146)
$90 Mako Recoil Reducing Buttstock (Midway #886169.. I got at Amazon)
$130 King Armory Muzzle Brake (KA-0450 www.kingarmory.com)
Still needed:
Barrel - waiting for Midway to get instock, 16"
Bolt Carrier parts
Lower handle/parts
Buffer Tube
Sights (looking at just plain red dot)
Gas block (seems stoner barrel has odd size .875")
Current work needed beyond regular AR15 assembly:
Machine lower (going to use 80% Arms universal jig)
Open up ejection port in upper (I've heard ~1/10 of an inch)
Anodize

For the lower, I'm starting with a TM 80%.
I'm going to use a GL-Shock-CP - FAB Shock Absorbing Butt Stock. I saw it come highly recommended for taming the recoil.
Is there a recommended buffer or spring for Beowulf?
For the upper, I'm starting with a TM upper. I understand the ejection port needs to be enlarged.
For a muzzle brake, I've read that the Kings Armory KA-0450 is "THE" one to get.
For the hand guard, I'm going with a smooth Hogue Free Float Tube. I'm trying to stay away from the "tacticool" look.
From the above, I'm not sure where to go.
For a barrel, I've heard the AR Stoner works:
Is the above the correct barrel to get?
What about a gas block/tube?
************************************************** *
Edit from here down for on-going parts list. I will not include reload or ammo in this list.
Here is an ongoing parts list:
$49 TM 80% lower ($45 for engrave, anodize extra and tools extra)
$29 TM upper (TM sale going on RIGHT now Sept 2014)
$44 Hogue Free Float Tube Knurled Aluminum (Midway #122407)
$21 AO Charging Handle (Midway #983634)
$10 Del-Ton Gas Tub (Midway #535924)
$40 DPMS Bolt Carrier (Midway #990146)
$90 Mako Recoil Reducing Buttstock (Midway #886169.. I got at Amazon)
$130 King Armory Muzzle Brake (KA-0450 www.kingarmory.com)
Still needed:
Barrel - waiting for Midway to get instock, 16"
Bolt Carrier parts
Lower handle/parts
Buffer Tube
Sights (looking at just plain red dot)
Gas block (seems stoner barrel has odd size .875")
Current work needed beyond regular AR15 assembly:
Machine lower (going to use 80% Arms universal jig)
Open up ejection port in upper (I've heard ~1/10 of an inch)
Anodize

Honest question. So far in my AR adventures, I haven't had to select one.

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