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Browse .223 Remington Upper Receivers for sale at the lowest prices online.

Radical .223 Remington Upper with 16" Barrel, Black - RF00325 - Radical Firearms

Radical .223 Remington Upper with 16" Barrel, Black - RF00325

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Radical Firearms

Luth-AR A2 Carry Handle Style Stripped Upper Receiver w/A2 Rear Sight Cut, Black - Luth-Ar

Luth-AR A2 Carry Handle Style Stripped Upper Receiver w/A2 Rear Sight Cut, Black

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Ballistic Advantage Performance Series .223 Rem/5.56 11.3" Carbine Barrel, QPQ - BABL556026F - Ballistic Advantage

Ballistic Advantage Performance Series .223 Rem/5.56 11.3" Carbine Barrel, QPQ - BABL556026F

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Ballistic Advantage

Spikes Tactical Cold Hammer Forged Barrel 5.56 NATO / .223 Rem 14.5 Barrel - Spikes Tactical

Spikes Tactical Cold Hammer Forged Barrel 5.56 NATO / .223 Rem 14.5 Barrel

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Spikes Tactical

FN 10" SCAR 16S Barrel, 1:7, .223 Remington - 98802 - Fnh

FN 10" SCAR 16S Barrel, 1:7, .223 Remington - 98802

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Midwest Industries Upper Upper 223 Remington 556NATO 10.5" Black MLOK AR-15 - Midwest Industries

Midwest Industries Upper Upper 223 Remington 556NATO 10.5" Black MLOK AR-15

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Midwest Industries

SilencerCo SCO15, Stripped Upper Receiver, .223 Remington/556NATO, Black - Silencerco

SilencerCo SCO15, Stripped Upper Receiver, .223 Remington/556NATO, Black

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Daniel Defense MK18 Flat Dark Earth 5.56 NATO 10.3" Short Barrel Upper Receiver Group 23-004-08013-011 - Daniel Defense

Daniel Defense MK18 Flat Dark Earth 5.56 NATO 10.3" Short Barrel Upper Receiver Group 23-004-08013-011

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Spike's Tactical Generation 2, Billet, Upper, 223 Remington, 556NATO, Black, Mil-Spec Barrel Nut - Spikes Tactical

Spike's Tactical Generation 2, Billet, Upper, 223 Remington, 556NATO, Black, Mil-Spec Barrel Nut

$283.99 $208.99

Spikes Tactical

Luth-AR 24" Bull Barrel Complete Upper Assembly For 223 Rem/556NATO Keymod, Black - FTBL-B24 - Luth-Ar

Luth-AR 24" Bull Barrel Complete Upper Assembly For 223 Rem/556NATO Keymod, Black - FTBL-B24

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Sons of Liberty Gun Works Veil Solutions .223 Remington/5.56x45mm 13.70", Tan - Sons Of Liberty Gun Works

Sons of Liberty Gun Works Veil Solutions .223 Remington/5.56x45mm 13.70", Tan

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Sons Of Liberty Gun Works

Luth-AR 16" Lightweight Barrel Complete Upper Receiver For 223 Rem/556NATO, Black - BAA3-L16 - Luth-Ar

Luth-AR 16" Lightweight Barrel Complete Upper Receiver For 223 Rem/556NATO, Black - BAA3-L16

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Sons of Liberty Gun Works .223 Remington Upper with 13.7" Barrel, Black - EXO3UPPER13.7556 - Sons Of Liberty Gun Works

Sons of Liberty Gun Works .223 Remington Upper with 13.7" Barrel, Black - EXO3UPPER13.7556

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Sons Of Liberty Gun Works

Noveske Commando Barrel Stainless 5.56 NATO / .223 Rem 11.5 Barrel for AR-15 - Noveske

Noveske Commando Barrel Stainless 5.56 NATO / .223 Rem 11.5 Barrel for AR-15

$458.99 $342.00

Battle Arms WORKHORSE AR-15 Upper Receiver, 16" Barrel, No BCG or Charging Handle - Battle Arms Development

Battle Arms WORKHORSE AR-15 Upper Receiver, 16" Barrel, No BCG or Charging Handle

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Battle Arms Development

Sons of Liberty Gun Works .223 Remington Upper with 16" Barrel, Black - PATROLSLUPPER16556 - Sons Of Liberty Gun Works

Sons of Liberty Gun Works .223 Remington Upper with 16" Barrel, Black - PATROLSLUPPER16556

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Sons Of Liberty Gun Works

Aero Precision M4E1-T Upper 5.56 / .223 Rem 14.5 Barrel w/ ATLAS R-ONE Handguard - Aero Precision

Aero Precision M4E1-T Upper 5.56 / .223 Rem 14.5 Barrel w/ ATLAS R-ONE Handguard

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Battle Arms Development WORKHORSE Upper .223-Remington 5.56-NATO 10.5 Barrel - Battle Arms Development

Battle Arms Development WORKHORSE Upper .223-Remington 5.56-NATO 10.5 Barrel

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Battle Arms Development

Noveske Light Afghan Barrel 5.56 NATO / .223 Rem 14.5 Barrel for AR-15 - Noveske

Noveske Light Afghan Barrel 5.56 NATO / .223 Rem 14.5 Barrel for AR-15

$655.99 $474.63

Fortis Billet M4 Upper Stripped for AR15 223 Rem, 556 NATO - UBilletM4 - Fortis Manufacturing

Fortis Billet M4 Upper Stripped for AR15 223 Rem, 556 NATO - UBilletM4

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Fortis Manufacturing

Radian Weapons Model 1 Builder Kit Gray 5.56 14 Handguard - Radian Weapons

Radian Weapons Model 1 Builder Kit Gray 5.56 14 Handguard

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Radian Weapons Model 1 MOE Upper M-LOK Rail with Charging Handle, Black - Advanced Tactical - R0428 - Radian Weapons

Radian Weapons Model 1 MOE Upper M-LOK Rail with Charging Handle, Black - Advanced Tactical - R0428

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Sons of Liberty Gun Works .223 Remington Upper with 16" Barrel, Black - EXO3UPPER16556 - Sons Of Liberty Gun Works

Sons of Liberty Gun Works .223 Remington Upper with 16" Barrel, Black - EXO3UPPER16556

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Sons Of Liberty Gun Works

Aero Precision AR15 Complete Upper 5.56 / .223 Rem 10.5 Barrel - Aero Precision

Aero Precision AR15 Complete Upper 5.56 / .223 Rem 10.5 Barrel

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

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