Upper Receiver

Colt receiver
Rainier Arms parts kit
Rainier Arms BCG
Rainier Arms Match Barrel (10.5", carbine length gas, .223 Wylde chamber, 1/8 twist, Shilen blank)
Carbon Arms gas block
carbine gas tube
VTAC 9" hand guard
Aimpoint H-1 on a Daniel Defense lower 1/3 co-witness mount
Gemtech Trek suppressor