I have decided that I would like to build an AR-15. I've had a stag arms for about 7 or 8 years that has a 16'' barrel and a holo sight on it so I am not completely new to the black rifle. This one I want to make into a precision rifle that will achieve at least sub-MOA accuracy. Being that at that level if precision requires a good base and here is my issue, I have no idea where to start or even ( I am assuming it does) matter. I will want it to be stripped so I can put in the internals that I want. What better place to look then here with the experts right?

You'll get lots of advice and hopefully it's more detailed than mine...

4 pieces NOT to buy "value".

1.   Barrel
2.  Trigger
3.   BCG
4.   Optics

Invest right in those areas and you can get the job done.

On precision I prefer billet, but it isn't an issue either way.

Agreed.

For a "precision" rifle, I'd even go so far as to re-order those components according to what you should spend the most on:

1. Optics
2. Barrel
3. Trigger
4. BCG

Sounds like a fun build. I'm already planning my next one and I don't even have the first one done yet
 I'm thinking of an 18" SPR-ish coyote rifle along with some precision shooting for fun.

 

Forgive my ignorance, What is bcg?

Bolt Carrier Group



 

we have a precision rifle section, you might want to check out for ideas. http://www.ar15.com/forums/b/16_Precision_Rifles.html

Welcome aboard. You will get different veiws and opinions on the order of importance. But yes Barrel, Optics, Bcg, and trigger do play a huge roll in accuracy.