I don't know about airsoft but for my real ar15:
KAC RAS
KAC VFG
KAC rail covers
Surefire m951
LMT Sopmod
Matech BUIS or ARMS #40 BUIS or MI BUIS
ACOG TA01NSN
PEQ2A/Vital2/PEQ15 or whichever one
AAC M42000 can
Aside from the PEQ2A which i won't get until Im rich or in LE, and the can which i can't get until im 21, I should be finished a bit after christmas
So, since my ar15 is/will be done up like that, I suppose I want my airsoft gun the exact same.
Basically like my pic in my signature, except thats missing a few things lol.