223 Remington Upper Receivers

WINDHAM WEAPONRY VEX-SS 20IN UPPER REC ASSEMBLY

WINDHAM WEAPONRY HBC 16IN HEAVY UPPR REC/BBL AS

WINDHAM WEAPONRY MPC 16IN M4 PROFILE UPPER WO/C

WINDHAM WEAPONRY SRC M4 PROFILE 16IN UPPER REC/

WINDHAM WEAPONRY MPC 16IN M4 PROFILE UPPER W/CA

WINDHAM WEAPONRY HBC 16IN HEAVY UPPER REC/BARRE

Patriot Ordnance Factory : POF Upper Receivers : Upper Receiver .223 : 00757

Patriot Ordnance Factory : POF Upper Receivers : Upper Receiver .223 : 00617

Patriot Ordnance Factory : POF Upper Receivers : Upper Receiver .223 : 00616

Patriot Ordnance Factory : POF Upper Receivers : Upper Receiver .223 : 00614

Patriot Ordnance Factory : POF Upper Receivers : Upper Receiver .223 : 00613

Patriot Ordnance Factory : POF Upper Receivers : Upper Receiver .223 : 00611

Patriot Ordnance Factory : POF Upper Receivers : Upper Receiver .223 : 00610

Patriot Ordnance Factory : POF Upper Receivers : Upper Receiver .223 : 00608

FN SBR Upper .223 Rem 11.5 Barrel Flat-Top

FN America FN15 Tactical Upper (HF Barrel) 36430

Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/4x1/4 .030 Hooded Aperture Rear Sight Black

Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/4x1/4 .040 Hooded Aperture Rear Sight Black

Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/2x1/2 .030 Hooded Aperture Rear Sight Black

Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/2x1/2 .040 Hooded Aperture Rear Sight Black

Rock River Arms Forged A2 Stripped Upper Receiver Black

DoubleStar DS-4 AR-15/M4 Flattop Upper Heavy Match Barrel 16 inch 5.56/.223 1-9 Twist A1 Muzzle Device Black

Noveske Complete Upper .223 Rem / 5.56 18 Barrel Gen 3 for AR15

Stag Arms Upper Receiver Assembly Kit Left Hand