Bushmaster A1 Upper with Luth-AR Forward Assist and A1 Charging handle (charge handle looks great, iffy to use, I can see why this was changed in later designs).
Bushmaster XM15-E2S lower with M16 trigger pocket, match grade LPK with straight trigger shoe.
Bushmaster magazine, why not.
H&R 6 Position Brace
10.5" Carbine Gas 5.56 Nato FSB
You can go long or short on the flash hider, or get the BEST flash...suppressor... and spring for the YHM Phantom .223 (+$399 to FLD +$200 to ATF)