What do I need to build a 7.62x39 upper.

[ljk]

I have a complete AR lower, stripped upper, 556 BCG.

Please, give me the list of parts I need to get.

 

[ACC]

7.62x39 BCG
7.62x39 barrel
.750 (probably) gas block
gas tube
hand guard
5/8x24 muzzle device
barrel nut
forward assist/dust cover hardware
charging handle
ASC 7.62x39 AR mags (the most reliable IMO)
optics or iron sights

I think that is most of it, though I may have forgotten something.

I built a 7.62x39 10.5" upper for my SBR lower. It is FUN to shoot. However, the more I own it and the more AKs I own, the more of a purist I become. ARs are for 5.56 and AKs are for 7.62x39

 

[cop car]

The 5.56 bcg works with a 7.62 bolt. Need a bolt and firing pin. Most likely will need a wolf trigger spring for the harder primers. Normal gas tube. Need your barrel (buy one with gas block already pinned on) then whatever hand guard you want.

 

[Mgderf]

The 5.56 bcg works with a 7.62 bolt. Need a bolt and firing pin. Most likely will need a wolf trigger spring for the harder primers. Normal gas tube. Need your barrel (buy one with gas block already pinned on) then whatever hand guard you want.

I built my X39 AR using a standard Anderson LPK.
I probably have close to 1k rounds through it without a single light primer strike.