UPPER RECEIVERS

Sons of Liberty Gun Works, EXO3 Complete Upper, 223 Remington/556NATO, 16" Combat Barrel, QPQ Finish, Black, 15" EXO3 M-LOK Handguard, A2 Flash Hider 5.56NATO/223 Remington Complete Upper Receiver 16" Combat Barrel 15" EXO3 Handguard A2 Flash...

Aero Precision, M4E1 AR15 Complete Upper, 223 Remington/556NATO, 16" Barrel, 1:7 Twist, ATLAS S-ONE Handguard, Mid Length Gas System, Cerakote Finish, Flat Dark Earth, Does Not Include BCG or Charging Handle M4E1 Threaded Assembled Upper...

Aero Precision, M5 Complete Upper, 308 Winchester, 16" Barrel, 1:10 Twist, Rifle Length Gas System, ATLAS S-ONE Handguard, Cerakote Finish, Flat Dark Earth, Does Not Include BCG or Carry Handle M5 Assembled Upper Receiver ATLAS S-ONE Handguard 16" ...

Aero Precision, M5 Complete Upper, 308 Winchester, 16" Barrel, 1:10 Twist, Rifle Length Gas System, ATLAS S-ONE Handguard, Anodized Finish, Black, Does Not Include BCG or Charging Handle M5 Assembled Upper Receiver ATLAS S-ONE Handguard 16" .308 SS...