5.56x45mm NATO Upper Receivers

LWRC Individual Carbine A5 Complete Upper 5.56 - Black - 16"

Ghost Firearms M4 Elite Complete Upper Receiver - 5.56 NATO - FDE - 16"

Evolve Weapons Systems M4 Stripped AR-15 Upper Receiver - Green

Daniel Defense V7 Barreled AR-15 Upper Receiver - 5.56 - 11.5" - Primary Arms Exclusive

Daniel Defense DD4 RIS III Barreled AR-15 Upper Receiver - 5.56 - 11.5" - FDE - Primary Arms Exclusive

Daniel Defense DD4 RIS III Barreled AR-15 Upper Receiver - 5.56 - 11.5" - Primary Arms Exclusive

Radical Firearms 16" 5.56 NATO 1:7 Mid-Length SOCOM Complete Upper - 12" M-LOK FCR Rail

Bravo Company Manufacturing Barreled AR-15 Upper Receiver - 5.56 - 16" - RAIDER-M13

Bravo Company Manufacturing Barreled AR-15 Upper Receiver - 5.56 - 16" - Black/FDE - MCMR-15

Bravo Company Manufacturing Barreled AR-15 Upper Receiver - 5.56 - 16" - MCMR-15

Bravo Company Manufacturing Barreled AR-15 Upper Receiver - 5.56 - 16" - Black/FDE - MCMR-13

Bravo Company Manufacturing BFH Barreled AR-15 Upper Receiver - 5.56 - 16" - MCMR-15

Bravo Company Manufacturing Enhanced Lightweight Barreled AR-15 Upper Receiver - 5.56 - 16" - MCMR-15

Bravo Company Manufacturing BFH Barreled AR-15 Upper Receiver - 5.56 - 14.5" - MCMR-13

Bravo Company Manufacturing Barreled AR-15 Upper Receiver - 5.56 - 14.5" - RAIDER-M13

Bravo Company Manufacturing Barreled AR-15 Upper Receiver - 5.56 - 14.5" - Black/FDE - MCMR-13

Bravo Company Manufacturing Barreled AR-15 Upper Receiver - 5.56 - 14.5" - MCMR-13

Bravo Company Manufacturing BFH Enhanced Lightweight Barreled AR-15 Upper Receiver - 5.56 - 14.5" - MCMR-13

Bravo Company Manufacturing Barreled AR-15 Upper Receiver - 5.56 - 12.5" - RAIDER-M10

Bravo Company Manufacturing Barreled AR-15 Upper Receiver - 5.56 - 12.5" - MCMR-10

Bravo Company Manufacturing BFH Barreled AR-15 Upper Receiver - 5.56 - 11.5" - QRF-10

Bravo Company Manufacturing BFH Barreled AR-15 Upper Receiver - 5.56 - 11.5" - MCMR-10

Bravo Company Manufacturing MK2 Barreled AR-15 Upper Receiver - 5.56 - 16" - FDE - MCMR-15

Bravo Company Manufacturing MK2 Barreled AR-15 Upper Receiver - 5.56 - 16" - MCMR-15