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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

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
$254.99 Original price $189.99
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
$169.99 Original price $129.99
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
$184.99 Original price $139.99
Davidson Defense Aegis Lightweight 18-inch Rifle-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Rifle Full Build Kit
Davidson Defense Aegis Lightweight 18-inch Rifle-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Rifle Full Build Kit
$319.99 Original price $239.99
Davidson Defense 'Capture' 10.5-inch AR-15 5.56 NATO Nitride Pistol Complete Upper Build
Davidson Defense 'Capture' 10.5-inch AR-15 5.56 NATO Nitride Pistol Complete Upper Build
$249.99 Original price $189.99
Davidson Defense LAZR 18-inch Rifle-Gas 5.56 NATO AR-15 Rifle Full Build Kit
Davidson Defense LAZR 18-inch Rifle-Gas 5.56 NATO AR-15 Rifle Full Build Kit
$329.99 Original price $249.99
Davidson Defense Aegis Lightweight 16.5-inch Mid-Gas 1:7 5.56 NATO AR-15 15-inch Freefloat M-Lok Handguard Rifle Upper Build Kit
Davidson Defense Aegis Lightweight 16.5-inch Mid-Gas 1:7 5.56 NATO AR-15 15-inch Freefloat M-Lok Handguard Rifle Upper Build Kit
$184.99 Original price $139.99
Bear Creek Arsenal 20-inch Rifle-Gas 1:7 5.56 NATO Drop-In Polymer Handguard Complete Upper Build
Bear Creek Arsenal 20-inch Rifle-Gas 1:7 5.56 NATO Drop-In Polymer Handguard Complete Upper Build
$398.99 Original price $299.99
Davidson Defense Orome 18-inch AR-15 5.56 NATO Rifle Full Build Kit
Davidson Defense Orome 18-inch AR-15 5.56 NATO Rifle Full Build Kit
$324.99 Original price $244.99
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
$354.99 Original price $264.99
Davidson Defense Medusa's Fury 7.5-inch Pistol-Gas 1:7 5.56 NATO AR-15 Custom Handguard Pistol Full Build Kit, SBR Ready
Davidson Defense Medusa's Fury 7.5-inch Pistol-Gas 1:7 5.56 NATO AR-15 Custom Handguard Pistol Full Build Kit, SBR Ready
$289.99 Original price $219.99
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
$299.99 Original price $229.99

New Releases

Davidson Defense Aegis Lightweight w/Gauntlet Arms Brace 10.5-inch Carbine-Gas 1:7 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 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit
$319.99 Original price $239.99
Davidson Defense Aegis Lightweight 10.5-inch Carbine-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit
Davidson Defense Aegis Lightweight 10.5-inch Carbine-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit
$169.99 Original price $129.99
Davidson Defense Warden Duty 11.5-inch Mid-Gas 1:7 5.56 NATO AR-15 Freefloat Keymod Handguard Pistol Complete Upper Build
Davidson Defense Warden Duty 11.5-inch Mid-Gas 1:7 5.56 NATO AR-15 Freefloat Keymod Handguard Pistol Complete Upper Build
$239.99 Original price $179.99
Davidson Defense Warden Duty 11.5-inch Mid-Gas 1:7 5.56 NATO AR-15 Freefloat Keymod Handguard Pistol Upper Build Kit
Davidson Defense Warden Duty 11.5-inch Mid-Gas 1:7 5.56 NATO AR-15 Freefloat Keymod Handguard Pistol Upper Build Kit
$154.99 Original price $119.99

Products [443]

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Davidson Defense Side Show 16.5-inch AR-15 5.56 NATO Rifle Complete Upper Build
Davidson Defense Side Show 16.5-inch AR-15 5.56 NATO Rifle Complete Upper Build
$299.99 $224.99 Sale
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Davidson Defense Side Hustle 10.5-inch AR-15 5.56 NATO Pistol Upper Build Kit
Davidson Defense Side Hustle 10.5-inch AR-15 5.56 NATO Pistol Upper Build Kit
$189.99 $144.99 Sale
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Davidson Defense Side Hustle 10.5-inch AR-15 5.56 NATO Pistol Complete Upper
Davidson Defense Side Hustle 10.5-inch AR-15 5.56 NATO Pistol Complete Upper
$289.99 $214.99 Sale
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Davidson Defense Side Hustle w/Gauntlet Arms Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
Davidson Defense Side Hustle w/Gauntlet Arms Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
$349.99 $264.99 Sale
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Davidson Defense Side Hustle w/KAK Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
Davidson Defense Side Hustle w/KAK Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
$374.99 $279.99 Sale
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Davidson Defense Side Hustle w/SBM4 Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
Davidson Defense Side Hustle w/SBM4 Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
$384.99 $289.99 Sale
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Davidson Defense Side Hustle w/SBA3 Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
Davidson Defense Side Hustle w/SBA3 Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
$434.99 $329.99 Sale
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Davidson Defense Side Hustle w/SBA5 Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
Davidson Defense Side Hustle w/SBA5 Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
$434.99 $329.99 Sale
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Davidson Defense Side Hustle w/SBA4 Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
Davidson Defense Side Hustle w/SBA4 Brace 10.5-inch AR-15 5.56 NATO Pistol Full Build Kit
$434.99 $329.99 Sale
In Stock. Free Shipping.
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Davidson Defense Orome 18-inch AR-15 5.56 Upper Build Kit
Davidson Defense Orome 18-inch AR-15 5.56 Upper Build Kit
$184.99 $139.99 Sale
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Davidson Defense Orome 18-inch AR-15 5.56 NATO Rifle Complete Upper Build
Davidson Defense Orome 18-inch AR-15 5.56 NATO Rifle Complete Upper Build
$264.99 $199.99 Sale
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Davidson Defense Orome 18-inch AR-15 5.56 NATO Rifle Full Build Kit
Davidson Defense Orome 18-inch AR-15 5.56 NATO Rifle Full Build Kit
$324.99 $244.99 Sale
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Davidson Defense LAZR 18-inch Rifle-Gas 5.56 NATO AR-15 Rifle Upper Build Kit
Davidson Defense LAZR 18-inch Rifle-Gas 5.56 NATO AR-15 Rifle Upper Build Kit
$189.99 $144.99 Sale
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Davidson Defense LAZR 18-inch Rifle-Gas 5.56 NATO AR-15 Rifle Complete Upper Build
Davidson Defense LAZR 18-inch Rifle-Gas 5.56 NATO AR-15 Rifle Complete Upper Build
$269.99 $204.99 Sale
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Davidson Defense LAZR 18-inch Rifle-Gas 5.56 NATO AR-15 Rifle Full Build Kit
Davidson Defense LAZR 18-inch Rifle-Gas 5.56 NATO AR-15 Rifle Full Build Kit
$329.99 $249.99 Sale
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Davidson Defense Patriot 18-inch Rifle-Gas 5.56 NATO AR-15 Rifle Upper Build Kit
Davidson Defense Patriot 18-inch Rifle-Gas 5.56 NATO AR-15 Rifle Upper Build Kit
$384.99 $289.99 Sale
In Stock. Free Shipping.
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Davidson Defense Patriot 18-inch Rifle-Gas 5.56 NATO AR-15 Rifle Complete Upper Build
Davidson Defense Patriot 18-inch Rifle-Gas 5.56 NATO AR-15 Rifle Complete Upper Build
$464.99 $349.99 Sale
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Davidson Defense Patriot 18-inch Rifle-Gas 5.56 NATO AR-15 Rifle Full Build Kit
Davidson Defense Patriot 18-inch Rifle-Gas 5.56 NATO AR-15 Rifle Full Build Kit
$544.99 $409.99 Sale
In Stock. Free Shipping.
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Davidson Defense Aegis Lightweight 18-inch Rifle-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Rifle Upper Build Kit
Davidson Defense Aegis Lightweight 18-inch Rifle-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Rifle Upper Build Kit
$179.99 $134.99 Sale
In Stock.
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Davidson Defense Aegis Lightweight 18-inch Rifle-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Rifle Complete Upper Build
Davidson Defense Aegis Lightweight 18-inch Rifle-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Rifle Complete Upper Build
$259.99 $199.99 Sale
In Stock.
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Davidson Defense Aegis Lightweight 18-inch Rifle-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Rifle Full Build Kit
Davidson Defense Aegis Lightweight 18-inch Rifle-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Rifle Full Build Kit
$319.99 $239.99 Sale
In Stock.
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Davidson Defense Payback Side Charging 16-inch Carbine-Gas .350 Legend AR-15 Rifle Upper Build Kit
Davidson Defense Payback Side Charging 16-inch Carbine-Gas .350 Legend AR-15 Rifle Upper Build Kit
$229.99 $174.99 Sale
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Davidson Defense Payback Side Charging 16-inch Carbine-Gas .350 Legend AR-15 Rifle Complete Upper Build
Davidson Defense Payback Side Charging 16-inch Carbine-Gas .350 Legend AR-15 Rifle Complete Upper Build
$324.99 $244.99 Sale
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Davidson Defense Payback Side Charging 16-inch Carbine-Gas .350 Legend AR-15 Rifle Full Build Kit
Davidson Defense Payback Side Charging 16-inch Carbine-Gas .350 Legend AR-15 Rifle Full Build Kit
$414.99 $314.99 Sale
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