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5.56×45mm NATO
Shop 798 Deals on 5.56×45mm NATO Complete Uppers
Browse 5.56×45mm NATO Complete Uppers for sale at the lowest prices online.
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Daniel Defense M4A1 14.5" Pinned 5.56x45mm Upper Receiver, FDE - 23-004-13150
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Daniel Defense
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Aero Precision AR15 Complete Upper 5.56 / .223 Rem 10.5 Barrel
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Aero Precision
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Daniel Defense DDM4V7 Lightweight 16" 5.56 AR-15 Upper, Black - 23-128-02932-047
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Daniel Defense
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FightLite MCR Dual-Feed 16.25" Upper 5.56x45mm 1:7 M-LOK Picatinny Rail, Black
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Fightlite
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Geissele Automatics Super Duty Mod 1 16" 5.56x45mm Upper 1:7 M-LOK Rail with BCG and CH, Desert Dirt - 08-548S
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Geissele
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FightLite MCR Dual-Feed 12.50" Upper 5.56x45mm 1:7 Mil-Std 1913 Picatinny Rail, Black
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Fightlite
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Battle Arms WORKHORSE AR-15 Upper Receiver, 16" Barrel, No BCG or Charging Handle
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Battle Arms Development
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Colt EPR 5.56 M-LOK 16" AR-15 Upper, Black - LE6920EPR-CK
$1,229.99
$881.99
Colt
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Sons of Liberty Gun Works .223 Remington Upper with 16" Barrel, Black - PATROLSLUPPER16556
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Sons Of Liberty Gun Works
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Rock River Arms RRAGE 3G 16" Classic Upper 5.56x45mm 1:8 M-LOK Carbine-Length with BCG and CH, Black - High-Performance - BB0470
$649.99
$444.99
Rock River Arms
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Faxon Firearms ARAK-21 5.56x45mm 16" Quad Rail w/ BCG & CH, Black - URSSB556
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Faxon Firearms
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Faxon Firearms ARAK-21 12.50" Upper 5.56x45mm, Black
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Faxon Firearms
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Geissele Automatics Super Duty Mod 1 14.5" Upper 5.56x45mm 1:7 M-LOK Rail Mid-Length with BCG and CH, Desert Dirt - 08547S
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Geissele
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Sons of Liberty Gun Works L89 V2 5.56 16" Upper 5.56x45mm 1:7 M-LOK Rail Mid-Length, Black
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Sons Of Liberty Gun Works
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Maxim Defense PDX 5.56x45mm Upper with 5.5" Barrel, Black - MXM47813
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Maxim Defense
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Spikes Tactical 16" Classic Upper 5.56x45mm/.223 Remington 1:7 Quad Rail Mid-Length, Black
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Spikes Tactical
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Aero Precision AR-15 16" MOE Upper 5.56x45mm 1:7 MOE M-LOK Rail SL Mid-Length, Flat Dark Earth
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Aero Precision
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Luth-AR 16" Lightweight Barrel Complete Upper Receiver For 223 Rem/556NATO, Black - BAA3-L16
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Luth-Ar
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Battle Arms Authority Elite 16" Upper 5.56x45mm Free Float M-LOK Rail, Gray
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Battle Arms Development
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Maxim Defense PDX 5.56x45mm Upper with 5.5" Barrel, Flat Dark Earth - MXM47812
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Maxim Defense
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Daniel Defense DD4 RIII 16" Upper 5.56x45mm 1:7 M-LOK Mid-Length, Flat Dark Earth
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Daniel Defense
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Daniel Defense AR15 14.5" 5.56 NATO M4A1 RIII URG, FDE
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Daniel Defense
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Daniel Defense AR15 16" 5.56 NATO DD4 RIII URG
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Daniel Defense
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Daniel Defense AR15 10.3" 5.56 NATO MK18 RIII URG
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Daniel Defense
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