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Shop 158 Deals on 5.56×45mm NATO Upper Receivers

Browse 5.56×45mm NATO Upper Receivers for sale at the lowest prices online.

Patriot Ordnance Factory P415 Edge 10.50" Complete Upper 5.56x45mm, Black - 1269 - Patriot Ordnance Factory

Patriot Ordnance Factory P415 Edge 10.50" Complete Upper 5.56x45mm, Black - 1269

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

Patriot Ordnance Factory

Daniel Defense AR15 18" 5.56 NATO MK12 SPR URG - Daniel Defense

Daniel Defense AR15 18" 5.56 NATO MK12 SPR URG

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

Patriot Ordnance Factory Renegade Plus 16.5" Complete Upper 5.56x45mm 1:8, Black - 907 - Patriot Ordnance Factory

Patriot Ordnance Factory Renegade Plus 16.5" Complete Upper 5.56x45mm 1:8, Black - 907

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

Patriot Ordnance Factory

Del-Ton Inc 16" Heavy Carbine Rifle Kit 5.56x45mm 1:9, Black - RKT101 - Del-Ton

Del-Ton Inc 16" Heavy Carbine Rifle Kit 5.56x45mm 1:9, Black - RKT101

$469.99 $378.99

Tacfire 7" Complete Upper Assembly 5.56x45mm 1:8, Black - BU-556-7 - Tacfire

Tacfire 7" Complete Upper Assembly 5.56x45mm 1:8, Black - BU-556-7

$337.99 $232.78

Patriot Ordnance Factory P415 Edge 16.5" Complete Upper 5.56x45mm 1:8, Black - 1309 - Patriot Ordnance Factory

Patriot Ordnance Factory P415 Edge 16.5" Complete Upper 5.56x45mm 1:8, Black - 1309

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

Patriot Ordnance Factory

Patriot Ordnance Factory Renegade Plus 10.5" Complete Upper 5.56x45mm 1:8, Black - 912 - Patriot Ordnance Factory

Patriot Ordnance Factory Renegade Plus 10.5" Complete Upper 5.56x45mm 1:8, Black - 912

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

Patriot Ordnance Factory

Tacfire 5" Complete Upper Assembly 5.56x45mm 1:5, Black - BU-556-5 - Tacfire

Tacfire 5" Complete Upper Assembly 5.56x45mm 1:5, Black - BU-556-5

$418.99 $269.38

Tacfire 16" Complete Upper Assembly 5.56x45mm 1:8, Black - BU-556-16 - Tacfire

Tacfire 16" Complete Upper Assembly 5.56x45mm 1:8, Black - BU-556-16

$401.99 $240.99

Aero Precision M4E1 Threaded Stripped Upper Receiver, Flat Dark Earth - Aero Precision

Aero Precision M4E1 Threaded Stripped Upper Receiver, Flat Dark Earth

$170.00 $139.99

Anderson Manufacturing AM-15 Assembled Upper Receiver, Black - Anderson Manufacturing

Anderson Manufacturing AM-15 Assembled Upper Receiver, Black

Anderson Manufacturing

Primary Weapons Systems MK116 Pro Upper 223 Wylde/556NATO 16.1" Barrel, Black - 19-PM116UA0B - Primary Weapons Systems

Primary Weapons Systems MK116 Pro Upper 223 Wylde/556NATO 16.1" Barrel, Black - 19-PM116UA0B

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

Primary Weapons Systems

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

Del-Ton Inc 16" M4 Carbine Rifle Kit 5.56x45mm 1:9, Black - RKT100 - Del-Ton

Del-Ton Inc 16" M4 Carbine Rifle Kit 5.56x45mm 1:9, Black - RKT100

$469.99 $388.22

Del-Ton Inc 16" Heavy Mid Length Rifle Kit 5.56x45mm 1:9, Black - RKT104 - Del-Ton

Del-Ton Inc 16" Heavy Mid Length Rifle Kit 5.56x45mm 1:9, Black - RKT104

$535.59 $372.99

Bushmaster A3 Patrolman .223 Rem/5.56 16" Barrel Flat-Top Complete Upper Assembly - 91822 - Bushmaster

Bushmaster A3 Patrolman .223 Rem/5.56 16" Barrel Flat-Top Complete Upper Assembly - 91822

$780.99 $591.20

Aero Precision M4E1-T Upper Flat Dark Earth 5.56 14.5 Barrel No BCG/CH - Aero Precision

Aero Precision M4E1-T Upper Flat Dark Earth 5.56 14.5 Barrel No BCG/CH

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

Tacfire Upper 5.56x45mm, Black Anodized - UP01C2 - Tacfire

Tacfire Upper 5.56x45mm, Black Anodized - UP01C2

Patriot Ordnance Factory Minuteman 10.5" Complete Upper 5.56x45mm, Black - 1654 - Patriot Ordnance Factory

Patriot Ordnance Factory Minuteman 10.5" Complete Upper 5.56x45mm, Black - 1654

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

Patriot Ordnance Factory

Del-Ton Pre-Ban 16" Classic Upper 5.56x45mm 1:9 Carbine-Length, Black - Del-Ton

Del-Ton Pre-Ban 16" Classic Upper 5.56x45mm 1:9 Carbine-Length, Black

$350.00 $306.47

TacFire AR-15 Pistol Build Kit, Black - Tacfire

TacFire AR-15 Pistol Build Kit, Black

$502.99 $328.30

FN Barrel 556NATO 14.7" Black Hammer Forged Carbine AR Rifles - Fnh

FN Barrel 556NATO 14.7" Black Hammer Forged Carbine AR Rifles

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

Bushmaster M4 Patrolman's 20" AR-Style Upper Receiver 5.56x45mm 1:7, Black - 0040008BLK - Bushmaster

Bushmaster M4 Patrolman's 20" AR-Style Upper Receiver 5.56x45mm 1:7, Black - 0040008BLK

$705.99 $531.76

Tacfire 10" Complete Upper Assembly 5.56x45mm 1:8, Black - BU-556-10 - Tacfire

Tacfire 10" Complete Upper Assembly 5.56x45mm 1:8, Black - BU-556-10

$329.99 $233.99

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