My DREAM AR...my M16A1 clone I finished last month.
-Nodak Spud upper and lower
-1/9 twist pencil barrel (not a fan of the original 1/12 twist)
-A1 birdcage flash hider
-surplus triangle handguard, grip, and stock
-CMMG lower parts kit
-OD green M14/M16 sling
Not hi-tech, not modern, but...