Is my parts list complete for build?

[NCTTA]

My first Grendel build is about to start but I want to make sure I am not missing anything before I begin. Please let me know what needs to be added to list to make build complete

1. Billet Upper and Ambi Billet lower
2. Lilja AR740 barrel w thread protector
3. 14" HG
4. Adj Gas Block and rifle lenght gas tube
5. Charging handle
6. Forward assist assemble
7. LPK
8. Ambi safety
9. Ambi mag release
10. Trigger
11. Buffer tube and buffer assemble
12. ace skeleton stock
13. Magazines
14. Hornady SST ammo
15. Ejection port assemble
16. Grip

[am4966]

Bolt and Bolt Carrier Group and some grease for barrel nut lots of people Areoshell MS33

[NCTTA]

I missed posting the Bolt and BCG. Thanks for tip on grease!

[RangerRick]

What kind of sights? Will you be getting backup iron sights?

RR

[NCTTA]

I have a Trijicon TR 20-2. Just trying to decide if I want to use a Warne SKEL mount or ADM Recon, or something else