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

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

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

Aero Precision M4E1 Threaded Barreled AR-15 Upper 5.56 Carbine Length ATLAS R-One - 16"

Sons of Liberty Gun Works M4-76 5.56 Barreled Upper Receiver - 13.7"

Geissele Automatics MK16 Modular M-LOK AR-15 Handguard - 15" - Open Box

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

Aero Precision M5E1 Barreled Upper .308 Enhanced Gen 2 M-LOK - 18" - Black