223 Remington Upper Receivers

Guntec USA AR-15 Upper Completion Kit w/ Gen 3 Dust Cover Anodized Clear

Guntec USA AR-15 Upper Completion Kit w/ Gen 3 Dust Cover Anodized Green

Guntec USA AR-15 Upper Completion Kit w/ Gen 3 Dust Cover Anodized Blue

Guntec USA AR-15 Upper Completion Kit w/ Gen 3 Dust Cover Anodized Gold

Lead & Steel Mil-Spec Threaded Stripped Upper Receiver Canopy Green

Lead & Steel Mil-Spec Threaded Stripped Upper Receiver Flat Dark Earth

Bastion Bastion, Don't Tread On Me, AR-15 Ejection Port Dust Cover, Black/White Finish, Don't Tread On Me/Gadsden Flag Laser Engraved On open Side Only, Fits Standard 223/556/6.8/6.5 BASEPDC-BW-75DTOM

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

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

FOSTECH STEALTH BUILDERS KIT STRIPPED UPPER LOWER AND MACH-4 15IN RAIL MATCHED SET OD GREEN

Guntec USA AR-15 Upper Completion Kit With Gen 3 Dust Cover Anodized Red

Guntec USA AR-15 Upper Completion Kit Black

Guntec USA AR-15 Ejection Port Dust Cover Assembly Gen 3 Chrome

Sons of Liberty Gun Works SOLGW L89 SPR URG, 14.5" .223W, no Muzzle Device, no BCG/CH M4L89UPPER-14.5SPR-223-NMD

Armalite M15 Tactical Upper Assy 18" bbl UM15TAC18

Armalite M15 Tactical Upper Assy 16" bbl UM15TAC16

ANDERSON 24'' Stainless Steel Barrel Complete Upper BCG+CH

BUSHMASTER Minimalist SD A3 Upper CA Compliant

BUSHMASTER Minimalist SD A3 Upper CA Compliant

BUSHMASTER Bravo Zulu 11.5" Upper Assembly Blk

Bushmaster QPC M4 A3 223 16-inch Upper Assembly

V Seven Gi Heavy 556/223 Complete Upper 18in 18HR GI-UR

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

Dark Storm Industries DS15 AR-15 Stripped Billet Upper Receiver Mil-Spec Hard Coat Anodize Olive Drab Green Cerakote