Palmetto State Armory 20" CHF 1:7 A2 Rifle Length 5.56 NATO AR-15 Upper Assembly

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

TacFire AR-15 .223 / 5.56 Unassembled Upper Receiver Kit - 14.5"

TacFire AR-15 .223 / 5.56 Unassembled Upper Receiver Kit - 10"

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

TacFire AR-15 .300 Blackout Unassembled Upper Receiver Kit - 5"

CMMG 55BB40BMB Resolute MK4 5.56x45mm NATO 16.10", Midnight Bronze, M-LOK Free-Float Handguard for AR-Platform (No BCG or Charging Handle)

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