Palmetto State Armory Sabre Forged 14.7" 5.56 NATO Upper Receiver

Geissele Automatics Border Patrol Center Tab MK20 Assembled AR-15 Upper Receiver - 9.6" - BLEMULA

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

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

Wraithworks Billet Slick Side AR-15 Upper Receiver - Black | No Forward Assist or Brass Deflector

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

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

Geissele Automatics Super Duty Center Tab MK16 Upper Kit - Assembled Upper - Black - 15" - BLEMULA