AR Parts in 223 Remington

WINDHAM WEAPONRY MPC 16IN M4 PROFILE UPPER W/CA

WINDHAM WEAPONRY HBC 16IN HEAVY UPPER REC/BARRE

POF-USA Key Lock Bolt Carrier Group AR-15 223 Remington, 5.56x45mm with Roll Cam Pin Nitride

POF-USA Mil spec Enhanced Bolt Carrier Group AR-15 223 Remington, 5.56x45mm with Roll Cam Pin Nitride

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

Proof Research Defiance Ruckus Steel Pre-Fit Barrels 223 Rem 26in 7 Twist 5/8-24 Competition

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

WORN RRA AR3258 LAR-15 223/556 BOLT KIT

Rock River Arms 16in Mid SS Barrel Assembly Post/Fluted/No Threads Stainless Steel

Rock River Arms 16in Mid SS Barrel Assembly Post/No Threads Stainless Steel

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

Rock River Arms .223 A2 Flash Hider Black