GUN Whats everything I need to build an AR Upper

[LancerV]

Im thinking im going to just build one. Just confused on what all I would need tool wise and parts wise

 

[ʎǝʞsoɹƆɔW]

- upper receiver
- barrel w/nut
- bolt/firing pin
- bolt carrier
- rail assembly or delta/ring handguards
- charging handle
- gas tube
- gas block
- armorer's wrench

 

[LancerV]

Now trying to find a barrel that is 1/7 twist

 

[ʎǝʞsoɹƆɔW]

Now trying to find a barrel that is 1/7 twist

http://www.rainierarms.com/?page=shop/detail&product_id=600
http://www.rainierarms.com/?page=shop/detail&product_id=449
http://www.rainierarms.com/?page=shop/detail&product_id=774

 

[BROKE]

i need to fucking buy one but dont want to wait 8 weeks