So I'm thinking a building another AR this spring and summer

My thoughts are running along the lines of

Noveske Lower
Geissele SSA trigger group
Noveske N4 Recce upper
DD M4A1 RIS II FSP Rail Dark Earth
Vltor Emod Milspec stock Dark earth
Noveske QD End Plate
Troy Rear buis
Aimpoint Comp ML3

Still undecided on

Aimpoint mount
Grip
Rest of the lower parts
BCG
Charging handle

Any recommendations for the items I haven't decided on, and opinions of hte build would be appreciated.

What am I missing?