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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 Davidson Defense 'Rising Phoenix 5.56' 7.5-inch AR-15 5.56 NATO Stainless Pistol Upper Build Kit
Davidson Defense Davidson Defense 'Rising Phoenix 5.56' 7.5-inch AR-15 5.56 NATO Stainless Pistol Upper Build Kit
$174.99 Original price $129.99
Davidson Defense 'Tumbleweed' 7.5-inch AR-15 5.56 NATO Nitride Pistol Upper Build Kit
Davidson Defense 'Tumbleweed' 7.5-inch AR-15 5.56 NATO Nitride Pistol Upper Build Kit
$199.99 Original price $149.99
DD 'Aether' 16
DD 'Aether' 16" AR-15 5.56 Stainless Full Build Kit
$399.99 Original price $299.99
Davidson Defense Wallbreaker 16-inch AR-15 5.56 NATO Rifle Full Build Kit
Davidson Defense Wallbreaker 16-inch AR-15 5.56 NATO Rifle Full Build Kit
$359.99 Original price $269.99
Davidson Defense 'Capture w/Gauntlet Arms Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
Davidson Defense 'Capture w/Gauntlet Arms Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
$339.99 Original price $254.99
Davidson Defense 'Full House' 10.5-inch AR-15 5.56 NATO Nitride Pistol Upper Build Kit
Davidson Defense 'Full House' 10.5-inch AR-15 5.56 NATO Nitride Pistol Upper Build Kit
$169.99 Original price $129.99
DD 'Silver Sentinel' 16-inch AR-15 5.56 NATO Stainless Rifle Full Build Kit
DD 'Silver Sentinel' 16-inch AR-15 5.56 NATO Stainless Rifle Full Build Kit
$409.99 Original price $309.99
Davidson Defense Cursebreaker 7.5-inch AR-15 5.56 NATO Pistol Upper Build Kit
Davidson Defense Cursebreaker 7.5-inch AR-15 5.56 NATO Pistol Upper Build Kit
$169.99 Original price $124.99
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
$339.99 Original price $254.99
Davidson Defense 'Honest Work' 10.5-inch AR-15 5.56 NATO Nitride Pistol Upper Build Kit
Davidson Defense 'Honest Work' 10.5-inch AR-15 5.56 NATO Nitride Pistol Upper Build Kit
$169.99 Original price $129.99
Davidson Defense 'Strigoi' 16.5
Davidson Defense 'Strigoi' 16.5" AR-15 5.56 NATO Nitride Left Handed Rifle Complete Upper Build Kit
$399.99 Original price $299.99
Davidson Defense Tough Guy 10.5-inch Carbine-Gas 5.56 NATO AR-15 Rifle Assembled Upper Receiver
Davidson Defense Tough Guy 10.5-inch Carbine-Gas 5.56 NATO AR-15 Rifle Assembled Upper Receiver
$159.99 Original price $119.99

New Releases

Davidson Defense Isildur's Bane 20-inch Rifle-Gas 1:10 .308 Win AR-10 Freefloat M-Lok Handguard Rifle Upper Build Kit, KAK Industry Plan B A7 Flash Hider
Davidson Defense Isildur's Bane 20-inch Rifle-Gas 1:10 .308 Win AR-10 Freefloat M-Lok Handguard Rifle Upper Build Kit, KAK Industry Plan B A7 Flash Hider
Free Shipping.
$451.99 Original price $339.99
DTT Stiffler MFG Valkyrie Threaded Polished Clear PVD Barrel G17 Gen 1-3 Compatible 9MM Black RMR Complete Slide Kit
DTT Stiffler MFG Valkyrie Threaded Polished Clear PVD Barrel G17 Gen 1-3 Compatible 9MM Black RMR Complete Slide Kit
$289.99 Original price $214.99
DTT Stiffler MFG Valkyrie Comped Nitride Barrel G17 Gen 1-3 Compatible 9MM Black RMR Complete Slide Kit w/Gideon Optics Granite (RMR Footprint) Competition Single Red Dot
DTT Stiffler MFG Valkyrie Comped Nitride Barrel G17 Gen 1-3 Compatible 9MM Black RMR Complete Slide Kit w/Gideon Optics Granite (RMR Footprint) Competition Single Red Dot
Free Shipping.
$639.99 Original price $474.99
DTT Stiffler MFG Valkyrie Gold TiN Barrel G17 Gen 1-3 Compatible 9MM Black RMR Complete Slide Kit w/Gideon Optics Omega (SRO Compatible) Single Red Dot
DTT Stiffler MFG Valkyrie Gold TiN Barrel G17 Gen 1-3 Compatible 9MM Black RMR Complete Slide Kit w/Gideon Optics Omega (SRO Compatible) Single Red Dot
Free Shipping.
$589.99 Original price $444.99
5.56 NATO AR-15 Upper Builds subcategories
  • AR-15 80% Upper Build Kits > 5.56 NATO
  • AR-15 Full Build Kits (Everything Minus Lower) > 5.56 NATO
  • AR-15 Complete Upper Build Kits > 5.56 NATO
  • AR-15 Upper Build Kits > 5.56 NATO

Products [409]

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DD 'Drakonstorm' 7.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
DD 'Drakonstorm' 7.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
$499.99 $374.99 Sale
In Stock. Free Shipping.
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DD 'Drakonstorm' 7.5-inch AR-15 5.56 NATO Nitride Pistol Complete Upper Build Kit
DD 'Drakonstorm' 7.5-inch AR-15 5.56 NATO Nitride Pistol Complete Upper Build Kit
$439.99 $329.99 Sale
In Stock. Free Shipping.
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DD 'Drakonstorm' 7.5-inch AR-15 5.56 NATO Nitride Pistol Upper Build Kit
DD 'Drakonstorm' 7.5-inch AR-15 5.56 NATO Nitride Pistol Upper Build Kit
$329.99 $249.99 Sale
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ELITE AR-15 Geissele MK8 16.5-inch 5.56 NATO Nitride Rifle Complete Upper Build with X2 Dev Group Jackal X Charging Handle
ELITE AR-15 Geissele MK8 16.5-inch 5.56 NATO Nitride Rifle Complete Upper Build with X2 Dev Group Jackal X Charging Handle
$729.99 $549.99 Sale
Out of Stock. Free Shipping.
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ELITE AR-15 with Timber Creek Greyman Handguard 16.5-inch 5.56 NATO Nitride Rifle Complete Upper Build with X2 Dev Group Jackal X Charging Handle
ELITE AR-15 with Timber Creek Greyman Handguard 16.5-inch 5.56 NATO Nitride Rifle Complete Upper Build with X2 Dev Group Jackal X Charging Handle
$584.99 $439.99 Sale
Out of Stock. Free Shipping.
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ELITE AR-15 with Timber Creek Enforcer Handguard 16.5-inch 5.56 NATO Nitride Rifle Complete Upper Build with X2 Dev Group Jackal X Charging Handle
ELITE AR-15 with Timber Creek Enforcer Handguard 16.5-inch 5.56 NATO Nitride Rifle Complete Upper Build with X2 Dev Group Jackal X Charging Handle
$544.99 $409.99 Sale
Out of Stock. Free Shipping.
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ELITE AR-15 with Timber Creek Ultra Lite Enforcer Handguard 16.5-inch 5.56 NATO Nitride Rifle Complete Upper Build with X2 Dev Group Jackal X Charging Handle
ELITE AR-15 with Timber Creek Ultra Lite Enforcer Handguard 16.5-inch 5.56 NATO Nitride Rifle Complete Upper Build with X2 Dev Group Jackal X Charging Handle
$544.99 $409.99 Sale
Out of Stock. Free Shipping.
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ELITE AR-15 with Timber Creek Enforcer 13-inch Handguard 16.5-inch 5.56 NATO Nitride Rifle Complete Upper Build with X2 Dev Group Jackal X Charging Handle
ELITE AR-15 with Timber Creek Enforcer 13-inch Handguard 16.5-inch 5.56 NATO Nitride Rifle Complete Upper Build with X2 Dev Group Jackal X Charging Handle
$509.99 $384.99 Sale
Out of Stock. Free Shipping.
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ELITE AR-15 with Kaw Valley Konza Handguard 16.5-inch 5.56 NATO Nitride Rifle Complete Upper Build with X2 Dev Group Jackal X Charging Handle
ELITE AR-15 with Kaw Valley Konza Handguard 16.5-inch 5.56 NATO Nitride Rifle Complete Upper Build with X2 Dev Group Jackal X Charging Handle
$469.99 $354.99 Sale
Out of Stock. Free Shipping.
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ELITE AR-15 with ODIN Works Forend Handguard 16.5-inch 5.56 NATO Nitride Rifle Complete Upper Build with X2 Dev Group Jackal X Charging Handle
ELITE AR-15 with ODIN Works Forend Handguard 16.5-inch 5.56 NATO Nitride Rifle Complete Upper Build with X2 Dev Group Jackal X Charging Handle
$399.99 $304.99 Sale
Out of Stock. Free Shipping.
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Davidson Defense 'Journeyman Pistol' 7.5-inch AR-15 5.56 NATO Nitride Rifle Complete Upper Build Kit
Davidson Defense 'Journeyman Pistol' 7.5-inch AR-15 5.56 NATO Nitride Rifle Complete Upper Build Kit
$339.99 $254.99 Sale
In Stock.
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Davidson Defense 'Journeyman Pistol' 7.5-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
Davidson Defense 'Journeyman Pistol' 7.5-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$244.99 $184.99 Sale
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Davidson Defense 'Fire Derby' 10.5
Davidson Defense 'Fire Derby' 10.5" AR-15 5.56 NATO Phosphate SBA3 Pistol Full Build Kit
$474.99 $359.99 Sale
In Stock.
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Davidson Defense 'Fire Derby' 10.5
Davidson Defense 'Fire Derby' 10.5" AR-15 5.56 NATO Phosphate SBM4 Pistol Full Build Kit
$429.99 $324.99 Sale
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Davidson Defense 'Fire Derby' 10.5
Davidson Defense 'Fire Derby' 10.5" AR-15 5.56 NATO Phosphate Pistol Complete Upper Build
$304.99 $229.99 Sale
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Davidson Defense 'Fire Derby' 10.5
Davidson Defense 'Fire Derby' 10.5" AR-15 5.56 NATO Phosphate Pistol Upper Build Kit
$209.99 $159.99 Sale
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Davidson Defense 'Red Pearl' 10.5
Davidson Defense 'Red Pearl' 10.5" AR-15 5.56 NATO Phosphate SBA3 Pistol Full Build Kit
$474.99 $359.99 Sale
In Stock. Free Shipping.
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Davidson Defense 'Red Pearl' 10.5
Davidson Defense 'Red Pearl' 10.5" AR-15 5.56 NATO Phosphate SBM4 Pistol Full Build Kit
$429.99 $324.99 Sale
In Stock. Free Shipping.
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Davidson Defense 'Red Pearl' 10.5
Davidson Defense 'Red Pearl' 10.5" AR-15 5.56 NATO Phosphate Pistol Complete Upper Build
$304.99 $229.99 Sale
In Stock. Free Shipping.
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Davidson Defense 'Red Pearl' 10.5
Davidson Defense 'Red Pearl' 10.5" AR-15 5.56 NATO Phosphate Pistol Upper Build Kit
$209.99 $159.99 Sale
In Stock.
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DD 'Silver Sentinel' 16-inch AR-15 5.56 NATO Stainless Rifle Upper Build Kit
DD 'Silver Sentinel' 16-inch AR-15 5.56 NATO Stainless Rifle Upper Build Kit
$239.99 $184.99 Sale
In Stock.
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DD 'Silver Sentinel' 16-inch AR-15 5.56 NATO Stainless Rifle Complete Upper Build
DD 'Silver Sentinel' 16-inch AR-15 5.56 NATO Stainless Rifle Complete Upper Build
$339.99 $254.99 Sale
In Stock. Free Shipping.
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DD 'Silver Sentinel' 16-inch AR-15 5.56 NATO Stainless Rifle Full Build Kit
DD 'Silver Sentinel' 16-inch AR-15 5.56 NATO Stainless Rifle Full Build Kit
$409.99 $309.99 Sale
In Stock. Free Shipping.
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DD 'Rogue Renegade' 16
DD 'Rogue Renegade' 16" AR-15 5.56 NATO Stainless Rifle Full Build Kit
$404.99 $304.99 Sale
In Stock. Free Shipping.
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218 N State Street Orem UT 84057
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