223 Remington Upper Receivers

M16A1 Stripped Upper Receiver - Without M4 Feedramps

M16A1 Stripped Upper Receiver - M4 Feedramps

M16A1 Assembled Upper Receiver - With M4 Feedramps

Dirty Bird 16" Govt Mid 556 M-LOK Complete Upper - OD Green

Dirty Bird 16" Govt Mid 556 M-LOK Complete Upper - Midnight Bronze

Rainier Arms Rellim Arms AR-15 Take Down Upper Receiver Assembly Combo Black

AR-STONER T-Series AR-15 Unassembled Rifle Upper Receiver Kit 16" Barrel 5.56x45mm NATO

AR-STONER T-Series AR-15 Unassembled Pistol Upper Receiver Kit 5" Barrel 5.56x45mm NATO

AR-STONER T-Series AR-15 Unassembled Pistol Upper Receiver Kit 7" Barrel 5.56x45mm NATO

AR-STONER AR-15 Pistol Kit 5" Barrel 5.56x45mm NATO Standard Buffer System

AR-STONER T-Series AR-15 Complete Upper Receiver 5.56x45mm NATO 14.5" Barrel

Anderson Manufacturing AR15A3UPFORUMTCOM A3 Upper NO BBL

SONS M4L8914.5ASR 556 CHF V2 BRDSWRD UPPER

Heckler and Koch MR556A4 URK Complete Upper 5.56 / .223 Rem 14.5 Barrel SBR

ANDERSON Upper 20" w/NO BCG or Charging Handle 5.56/223

Dark Storm Industries DS15 AR-15 Stripped Billet Upper Receiver Mil-Spec Hard Coat Anodize Black

Dark Storm Industries DS-15 AR-15 Stripped Forged Upper Receiver Mil-Spec Hard Coat Anodize Black

Colt LE6933EPRII-PRO 5.56mm 16.1" Bbl Matte Black Metal MBUS Sights Surefire Muzzle Device Upper Receiver Conversion Kit LE6933-EPRII-PRO-SF3-CK

Colt LE6933EPRII-PRO 5.56mm 11.5" Bbl Matte Black Metal MBUS Sights HuxWerks Muzzle Device Upper Receiver Conversion Kit LE6933-EPRII-PRO-HUX-CK

Colt LE6933EPRII-SF3-CK 5.56mm 11.5" Bbl Matte Black MBUS Sights Surefire Muzzle Device Upper Receiver Conversion Kit LE6933-EPRII-SF3-CK

Brn-4(R) Upper Receiver Assemblies With Chrome Lined Barrels - Brn-4 Assembled Upper 14.5'''' Heavy Chrome Lined Barrel Black

Brn-4(R) Upper Receiver Assemblies With Chrome Lined Barrels - Brn-4 Assembled Upper 14.5'''' Medium Chrome Lined Barrel Black

Brn-4(R) Upper Receiver Assemblies With Chrome Lined Barrels - Brn-4 Assembled Upper 10.4'''' Heavy Chrome Lined Barrel Black

Gau-5a 12.7'''' 1-12 Upper Receivers - Brn-Gau-5a Upper Receiver, 11.5'''', 1-12 Twist, Black