Daniel Defense V7 URG 5.56 NATO Barreled Upper Receiver - 11.5" - Primary Arms Exclusive - Open Box

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Sons Of Liberty Gun Works M4-89 11.5" 5.56 NATO Barreled Upper Receiver Group - FREE SOLGW Ambi Charging Handle - BLEM

Expo Arms 16" 5.56 NATO AR-15 Barreled Upper Receiver - 15" M-LOK Handguard - A2 Flash Hider - Open Box

AERO PRECISION AR15 5.56 NATO / 223 Rem 20" Complete Upper Receiver w/ Carry Handle | Black

Bushmaster AR-15 Complete Upper Minimalist SD 556 Nato AR15 16" 90025

BATTLE ARMS Authority ELite Upper Recv 5.56 10.5" AR-15 Gray

Expo Arms Lite Barreled AR-15 Upper Receiver - 5.56 - 16" - Open Box