So a while ago I got the Zombie Control Aero Precision Lower that BigCat was selling. So for I have the Aero Precision Upper (stripped), Daniel Defense Mil spec LPK, Biohazard edition mil spec buffer tube/spring, magpul carbine stock, mil spec UPK, and a random Ergo Pistol grip I found at a local shop (felt sturdy/comfortable and had a storage compartment for $15!!), so now its time to start looking at barrels and the other expensive stuff. I've found that my choices for barrels are vast to say the least; Bison Armory (great package deals) Noveske (Worth the money??) Daniel Defense (CHF really all its chalked up to be?) LMT (don't know much) among others. also I've narrowed my Bolt carrier and bolt down to the LMT enhanced bolt with the Young Manufacturing chrome match bolt carrier, the quad rail I'd Like is also up for debate the YHM quad rail is nice with the end cap but the Daniel Defense lightweight looks like it would be more durable/stable. just looking for suggestions on the barrels/quad rails, this is going to be a hobbyist build for an Armageddon all purpose weapon.