Anderson Upper Combo: This includes an Andersons 16 300 Blackout AOR Complete Upper and an Anderson 16 AOR .223/5.56 Upper: - Anderson 300 Blackout Upper comes with 16 300 Blackout Barrel. 1-7 twist. Phosphate Finish Carbine Gas Set Up 5/8-24 threads .125 gas port 7075 T6 Forged Upper Receiver standard Gas Block A2 Hand Guard 308 A2 flash hider. - Andersons. 223/5.56 AOR Complete Upper comes with 16 M4 1-8 twist Barrel 7075 T6 Forged Upper Receiver standard Gas Block A2 HandGuard A2 Flash Hider - Comes with 1 Charging Handle and 1 BCG which will work in both Uppers.
Determined at checkout.