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.223 / 5.56 Stack Upper Receivers

1-24 of 40 Products
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Radian Weapons R0452 Compl Upper 10.5 223W FDE

Radian Weapons R0452 Compl Upper 10.5 223W FDE

$1904 95
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Larue Tactical LT91090 9.0" Quad Rail Handguard for AR-15

Larue Tactical LT91090 9.0" Quad Rail Handguard for AR-15

$343 79
In Stock
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HK 51000384 MR556 Upper Receiver Kit 5.56mm for AR15/M16/M4

HK 51000384 MR556 Upper Receiver Kit 5.56mm for AR15/M16/M4

$2179 00
In Stock
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Sons of Liberty Gun Works L89 V2 Complete Upper, AR-15, 5.56 NATO, 13.7" Barrel, Black Finish.

Sons of Liberty Gun Works L89 V2 Complete Upper, AR-15, 5.56 NATO, 13.7" Barrel, Black Finish.

$963 86
In Stock
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Faxon Firearms Ion Ultralight FX5500-U AR-15 Upper 5.56 NATO 16" Barrel Nitride Finish

Faxon Firearms Ion Ultralight FX5500-U AR-15 Upper 5.56 NATO 16" Barrel Nitride Finish

$1011 00
In Stock
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VKTR Industries VK-1 Complete Upper AR-15 5.56 NATO/.223 Rem 13.7" Barrel QPQ Nitride Finish

VKTR Industries VK-1 Complete Upper AR-15 5.56 NATO/.223 Rem 13.7" Barrel QPQ Nitride Finish

$1899 00
In Stock
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VKTR Industries V40273410012RP 13.70"

VKTR Industries V40273410012RP 13.70"

$1899 00
In Stock
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VKTR Industries VK-1 Complete AR-15 Upper 5.56 NATO 16" Barrel Nitride Finish Black

VKTR Industries VK-1 Complete AR-15 Upper 5.56 NATO 16" Barrel Nitride Finish Black

$1799 00
In Stock
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Radian Weapons R0473 Compl Upper 16 223W FDE

Radian Weapons R0473 Compl Upper 16 223W FDE

$2029 95
In Stock
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Radian Weapons R0466 Compl Upper 14.5 223W FDE

Radian Weapons R0466 Compl Upper 14.5 223W FDE

$1994 95
In Stock
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Rock River Arms AR0598.V1 LAR-15M All Terrain Hunter Complete Upper, 223 Wylde 18" Stainless Heavy Match Barrel, Black Rec/13" M-LOK Handgaurd, Operate Muzzle Brake

Rock River Arms AR0598.V1 LAR-15M All Terrain Hunter Complete Upper, 223 Wylde 18" Stainless Heavy Match Barrel, Black Rec/13" M-LOK Handgaurd, Operate Muzzle Brake

$632 53
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Radian Weapons R0025 Complete Upper 16"223 Wylde RAD Black

Radian Weapons R0025 Complete Upper 16"223 Wylde RAD Black

$2029 95
In Stock
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Spikes Tactical STU5025-R9S ST-15 LE Carbine Upper 5.56 16" M4 Profile Barrel Quad Rail Black

Spikes Tactical STU5025-R9S ST-15 LE Carbine Upper 5.56 16" M4 Profile Barrel Quad Rail Black

$743 40
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Spikes Tactical STU5435-MLS ST-15 Enhanced Mid Length Upper 5.56 16" CHF Barrel Black

Spikes Tactical STU5435-MLS ST-15 Enhanced Mid Length Upper 5.56 16" CHF Barrel Black

$630 00
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Radian Weapons R0023 Complete Upper 10.5"223 Wylde RAD Black

Radian Weapons R0023 Complete Upper 10.5"223 Wylde RAD Black

$1904 95
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Yankee Hill 110BILLET Billet Upper Receiver 5.56x45mm NATO 7075-T6 Aluminum Black Anodized Receiver for AR-15

Yankee Hill 110BILLET Billet Upper Receiver 5.56x45mm NATO 7075-T6 Aluminum Black Anodized Receiver for AR-15

Out of Stock
VKTR Industries VK-1 Complete AR-15 Upper, 13.7" Barrel, M-LOK Handguard, 5.56 NATO, Nitride Finish.

VKTR Industries VK-1 Complete AR-15 Upper, 13.7" Barrel, M-LOK Handguard, 5.56 NATO, Nitride Finish.

Out of Stock
Wolf Performance A1 Complete Upper 12.5" 5.56 NATO 1:7 Piston Driven

Wolf Performance A1 Complete Upper 12.5" 5.56 NATO 1:7 Piston Driven
Out of Stock
Battle Arms Development Workhorse WH556-URS-ODG OD Green Anodized AR-15/M4 Upper Receiver

Battle Arms Development Workhorse WH556-URS-ODG OD Green Anodized AR-15/M4 Upper Receiver

Out of Stock
Heckler & Koch MR556A4 Upper Receiver Kit AR-15 Compatible 5.56 NATO 11" Barrel Matte Black Finish

Heckler & Koch MR556A4 Upper Receiver Kit AR-15 Compatible 5.56 NATO 11" Barrel Matte Black Finish

Out of Stock
Geissele Automatics URG-I Near Clone Upper, AR-15 Compatible, 5.56 NATO, 14.5" Barrel, Black/Desert Dirt Finish.

Geissele Automatics URG-I Near Clone Upper, AR-15 Compatible, 5.56 NATO, 14.5" Barrel, Black/Desert Dirt Finish.

Out of Stock
TacFire 10.5" 5.56 NATO Black Nitride Complete Upper Assembly - SSBU55610

TacFire 10.5" 5.56 NATO Black Nitride Complete Upper Assembly - SSBU55610

Out of Stock
Sons of Liberty Gun Works Broadsword 89 V2 Upper, AR-15, 5.56 NATO, 13.7" Pinned Barrel, Black Finish.

Sons of Liberty Gun Works Broadsword 89 V2 Upper, AR-15, 5.56 NATO, 13.7" Pinned Barrel, Black Finish.

Out of Stock
Q LLC Sugar Weasel Upper AR-15 5.56 NATO 13" Barrel FDE Finish ACC-SW-556-13IN-UPPER

Q LLC Sugar Weasel Upper AR-15 5.56 NATO 13" Barrel FDE Finish ACC-SW-556-13IN-UPPER

Out of Stock
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