PWS MK116 MOD 1-M UPPER 338ARC 16.1 LS FRC

CMMG Banshee Mk4 AR-15 Upper Group .338 ARC 10.5" Barrel Black

FAXON URSSB556-SS-W ARAK21 16 556 COMP UPPER TNG

BEAR CREEK ARSENAL 5.56 NATO COMPLETE UPPER 10. BRL 1:7 TWIST CARBINE LENGTH GAS MLOK

BEAR CREEK ARSENAL 300 B/O COMPLETE UPPER 7.5 BRL 1:7 TWIST PISTOL LENGTH GAS MLOK

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

AERO PRECISION M4E1-T 5.56 NATO 11.5" Complete Upper Receiver | Black

TACFIRE AR-15 Billet Slick Upper Receiver Black