Upper parts

[steyraug]

To build an upper I know I need:
1)Stripped Upper
2) Barrel
3) bolt carrier group
4)charging handle
5) rail
6) Upper Receiver Parts Kit: Trap Door, Trap Door Pin, Spring & C-clip, Forward Assist, Spring & FA Roll Pin.

Any other things I would need to make the upper operational?

 

[Donvin999]

lets see gas block, gas tube, roll pin for gas tube, sights? and muzzle brake?

 

[Romokid]

Don't forget a barrel nut, delta ring assembly and hand guard cap, if your buying just a barrel and not a barrel assembly.

 

[Donvin999]

Don't forget a barrel nut, delta ring assembly and hand guard cap, if your buying just a barrel and not a barrel assembly.

i was thinking this but he said rail and i assume all rails come with barrel nuts? only two ive ever installed did...

 

[Coyote33]

To build an upper I know I need:
1)Stripped Upper
2) Barrel
3) bolt carrier group
4)charging handle
5) rail
6) Upper Receiver Parts Kit: Trap Door, Trap Door Pin, Spring & C-clip, Forward Assist, Spring & FA Roll Pin.

Any other things I would need to make the upper operational?

Bolt, unless that is part of #3.

lets see gas block, gas tube, roll pin for gas tube, sights? and muzzle brake?

You don't need the muzzle brake for an operational upper. I am not planning on getting one.

 

[Donvin999]

You don't need the muzzle brake for an operational upper. I am not planning on getting one.

true as long as its a nonthreaded barrel af at least 16 inches...