Geissele Automatics 5.56 USASOC Improved Complete Near-Clone AR-15 Upper Receiver - Desert Dirt- 10.3" - Open Box

Geissele Automatics Super Duty Center Tab MK16 Assembled AR-15 Upper Receiver - 9.3" - DDC - BLEMULA

Geissele Automatics Super Duty Assembled AR-15 Upper Receiver - BLEMULA

Aero Precision Stripped AR-15 Upper Receiver - Open Box

Aero Precision Complete AR-15 Upper Receiver Parts Kit - Open Box

Expo Arms Billet PCC Slick Side Stripped AR9 Upper Receiver - Open Box

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

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