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  1. Home
  2. AR-15 & AR-10 Build Kits
  3. Upper Builds by Caliber
  4. 5.56 NATO AR-15 Upper Builds

5.56 NATO AR-15 Upper Builds



Top Sellers

DD Customs
DD Customs "Avagaum" AR-15 Pistol Upper Receiver 8.5" 5.56 NATO 4150 CMV 1-7T Barrel 7" M-Lok Handguard
$159.99 Original price $119.99
Davidson Defense 'Fennek' 16
Davidson Defense 'Fennek' 16" AR-15 5.56 NATO Nitride Rifle Full Kit Drop-in Trigger Ready
$349.99 Original price $264.99
DD 'Anchor' 16
DD 'Anchor' 16" AR-15 5.56 NATO Stainless Rifle Full Build Kit
$414.99 Original price $309.99
Davidson Defense Warden 16.5-inch Mid-Gas 1:7 5.56 NATO AR-15 Freefloat Keymod Handguard Rifle Full Build Kit
Davidson Defense Warden 16.5-inch Mid-Gas 1:7 5.56 NATO AR-15 Freefloat Keymod Handguard Rifle Full Build Kit
$334.99 Original price $249.99
Warden Duty 16-inch Carbine-Gas 1:7 5.56 NATO AR-15 Freefloat Keymod Handguard Rifle Full Build Kit
Warden Duty 16-inch Carbine-Gas 1:7 5.56 NATO AR-15 Freefloat Keymod Handguard Rifle Full Build Kit
$314.99 Original price $239.99
Davidson Defense Aegis w/Gauntlet Arms Brace 7.5-inch Pistol-Gas 1:7 Stainless Steel 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit
Davidson Defense Aegis w/Gauntlet Arms Brace 7.5-inch Pistol-Gas 1:7 Stainless Steel 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit
$334.99 Original price $249.99
Davidson Defense 'Minneapolis' 16.5'' AR-15 5.56 NATO 1-7T Rifle Build Kit
Davidson Defense 'Minneapolis' 16.5'' AR-15 5.56 NATO 1-7T Rifle Build Kit
$214.99 Original price $159.99
Davidson Defense 'Shorty Slade' 10.5-inch AR-15 5.56 NATO Nitride Pistol Upper Build Kit
Davidson Defense 'Shorty Slade' 10.5-inch AR-15 5.56 NATO Nitride Pistol Upper Build Kit
$194.99 Original price $149.99
Davidson Defense Spartan Zero 7.5-inch AR-15 5.56 NATO Pistol Upper Build Kit
Davidson Defense Spartan Zero 7.5-inch AR-15 5.56 NATO Pistol Upper Build Kit
$174.99 Original price $129.99
Davidson Defense Attuned 10.5-inch Carbine-Gas 1:7 5.56 NATO AR-15 Freefloat Quad-Rail Handguard Pistol Upper Build Kit
Davidson Defense Attuned 10.5-inch Carbine-Gas 1:7 5.56 NATO AR-15 Freefloat Quad-Rail Handguard Pistol Upper Build Kit
$179.99 Original price $134.99
Davidson Defense Rapid Drop 7.5-inch Pistol-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit, SBR Ready
Davidson Defense Rapid Drop 7.5-inch Pistol-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit, SBR Ready
$304.99 Original price $229.99
Davidson Defense Aegis 16-inch Carbine-Gas 1:7 Nitrided 5.56 NATO AR-15 Freefloat M-Lok Handguard Rifle Full Build Kit
Davidson Defense Aegis 16-inch Carbine-Gas 1:7 Nitrided 5.56 NATO AR-15 Freefloat M-Lok Handguard Rifle Full Build Kit
$344.99 Original price $259.99

New Releases

Davidson Defense Manticore 18-inch Mid-Gas 1:24 .450 Bushmaster AR-15 Quad-Rail Rifle Complete Upper Build
Davidson Defense Manticore 18-inch Mid-Gas 1:24 .450 Bushmaster AR-15 Quad-Rail Rifle Complete Upper Build
$311.99 Original price $234.99
Davidson Defense Atriox 16-inch Carbine-Gas 1:8 5.56 NATO AR-15 M-Lok Rifle Complete Upper Build
Davidson Defense Atriox 16-inch Carbine-Gas 1:8 5.56 NATO AR-15 M-Lok Rifle Complete Upper Build
$284.99 Original price $214.99
Davidson Defense Warden Patrol 16-inch Carbine-Gas 1:8 5.56 NATO AR-15 KeyMod Rifle Upper Build Kit
Davidson Defense Warden Patrol 16-inch Carbine-Gas 1:8 5.56 NATO AR-15 KeyMod Rifle Upper Build Kit
$191.99 Original price $144.99
Davidson Defense Warden Patrol 16-inch Carbine-Gas 1:8 5.56 NATO AR-15 KeyMod Rifle Full Build Kit
Davidson Defense Warden Patrol 16-inch Carbine-Gas 1:8 5.56 NATO AR-15 KeyMod Rifle Full Build Kit
$331.99 Original price $249.99

Products [835]

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Davidson Defense 'Full House' 10.5-inch AR-15 5.56 NATO Nitride Pistol Complete Upper Build
Davidson Defense 'Full House' 10.5-inch AR-15 5.56 NATO Nitride Pistol Complete Upper Build
$259.99 $194.99 Sale
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Davidson Defense 'Full House w/Gauntlet Arms Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
Davidson Defense 'Full House w/Gauntlet Arms Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
$324.99 $244.99 Sale
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Davidson Defense 'Full House w/KAK Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
Davidson Defense 'Full House w/KAK Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
$344.99 $259.99 Sale
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Davidson Defense 'Full House w/SBA3 Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
Davidson Defense 'Full House w/SBA3 Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
$409.99 $304.99 Sale
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Davidson Defense 'Full House w/SBA5 Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
Davidson Defense 'Full House w/SBA5 Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
$409.99 $304.99 Sale
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Davidson Defense 'Full House w/SBM4 Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
Davidson Defense 'Full House w/SBM4 Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
$354.99 $264.99 Sale
In Stock. Free Shipping.
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Davidson Defense Aegis Lightweight 16-inch Carbine-Gas 1:8 5.56 NATO AR-15 Freefloat M-Lok Handguard Rifle Complete Upper Build
Davidson Defense Aegis Lightweight 16-inch Carbine-Gas 1:8 5.56 NATO AR-15 Freefloat M-Lok Handguard Rifle Complete Upper Build
$294.99 $219.99 Sale
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Davidson Defense Aegis Lightweight 10.5-inch Carbine-Gas 1:8 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit
Davidson Defense Aegis Lightweight 10.5-inch Carbine-Gas 1:8 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit
$184.99 $139.99 Sale
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Davidson Defense Aegis Lightweight 10.5-inch Carbine-Gas 1:8 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Complete Upper Build
Davidson Defense Aegis Lightweight 10.5-inch Carbine-Gas 1:8 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Complete Upper Build
$264.99 $199.99 Sale
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Davidson Defense Aegis Lightweight w/Gauntlet Arms Brace 10.5-inch Carbine-Gas 1:8 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit
Davidson Defense Aegis Lightweight w/Gauntlet Arms Brace 10.5-inch Carbine-Gas 1:8 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit
$329.99 $249.99 Sale
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Davidson Defense Aegis Lightweight w/KAK Brace 10.5-inch Carbine-Gas 1:8 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit
Davidson Defense Aegis Lightweight w/KAK Brace 10.5-inch Carbine-Gas 1:8 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit
$354.99 $264.99 Sale
In Stock. Free Shipping.
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Davidson Defense Aegis Lightweight w/SBA3 Brace 10.5-inch Carbine-Gas 1:8 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit
Davidson Defense Aegis Lightweight w/SBA3 Brace 10.5-inch Carbine-Gas 1:8 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit
$414.99 $314.99 Sale
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Davidson Defense Aegis Lightweight w/SBA5 Brace 10.5-inch Carbine-Gas 1:8 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit
Davidson Defense Aegis Lightweight w/SBA5 Brace 10.5-inch Carbine-Gas 1:8 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit
$414.99 $314.99 Sale
In Stock. Free Shipping.
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Davidson Defense Aegis Lightweight w/SBM4 Brace 10.5-inch Carbine-Gas 1:8 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit
Davidson Defense Aegis Lightweight w/SBM4 Brace 10.5-inch Carbine-Gas 1:8 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit
$359.99 $274.99 Sale
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Davidson Defense Jet Medallion in 5.56 16-inch AR-15 Upper Build Kit
Davidson Defense Jet Medallion in 5.56 16-inch AR-15 Upper Build Kit
$199.99 $149.99 Sale
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Davidson Defense Jungle Flame 10.5-inch AR-15 5.56 NATO Pistol Upper Build Kit
Davidson Defense Jungle Flame 10.5-inch AR-15 5.56 NATO Pistol Upper Build Kit
$224.99 $169.99 Sale
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Davidson Defense Jungle Flame 10.5-inch AR-15 5.56 NATO Pistol Complete Upper
Davidson Defense Jungle Flame 10.5-inch AR-15 5.56 NATO Pistol Complete Upper
$304.99 $229.99 Sale
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Davidson Defense Jungle Flame w/Gauntlet Arms Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
Davidson Defense Jungle Flame w/Gauntlet Arms Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
$369.99 $279.99 Sale
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Davidson Defense Jungle Flame w/KAK Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
Davidson Defense Jungle Flame w/KAK Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
$394.99 $294.99 Sale
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Davidson Defense Jungle Flame w/SBA3 Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
Davidson Defense Jungle Flame w/SBA3 Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
$454.99 $344.99 Sale
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Davidson Defense Jungle Flame w/SBA5 Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
Davidson Defense Jungle Flame w/SBA5 Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
$454.99 $344.99 Sale
In Stock. Free Shipping.
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Davidson Defense Jungle Flame w/SBM4 Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
Davidson Defense Jungle Flame w/SBM4 Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
$399.99 $299.99 Sale
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Davidson Defense 'Ox Tail' 7.5-inch AR-15 5.56 NATO Stainless Pistol Upper Build Kit
Davidson Defense 'Ox Tail' 7.5-inch AR-15 5.56 NATO Stainless Pistol Upper Build Kit
$194.99 $149.99 Sale
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Davidson Defense 'Ox Tail' 7.5-inch AR-15 5.56 NATO Stainless Pistol Complete Upper Build
Davidson Defense 'Ox Tail' 7.5-inch AR-15 5.56 NATO Stainless Pistol Complete Upper Build
$279.99 $209.99 Sale
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