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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 7.5-inch Pistol-Gas 1:7 Stainless Steel 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit
Davidson Defense Aegis 7.5-inch Pistol-Gas 1:7 Stainless Steel 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit
$174.99 Original price $134.99
DD 'Fennek' 16.5
DD 'Fennek' 16.5" AR-15 5.56 Full Build Kit
$349.99 Original price $259.99
Davidson Defense Aegis 7.5-inch Pistol-Gas 1:7 Stainless Steel 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Complete Upper Build
Davidson Defense Aegis 7.5-inch Pistol-Gas 1:7 Stainless Steel 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Complete Upper Build
$259.99 Original price $194.99
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
$164.99 Original price $124.99
Davidson Defense Medusa's Fury 7.5-inch Pistol-Gas 1:7 5.56 NATO AR-15 Freefloat Tubular Handguard Pistol Assembled Upper Receiver
Davidson Defense Medusa's Fury 7.5-inch Pistol-Gas 1:7 5.56 NATO AR-15 Freefloat Tubular Handguard Pistol Assembled Upper Receiver
$151.99 Original price $114.99
Davidson Defense Vanyar (Suppressor Ready) 16.5-inch AR-15 5.56 NATO Rifle Upper Assembled Upper Receiver
Davidson Defense Vanyar (Suppressor Ready) 16.5-inch AR-15 5.56 NATO Rifle Upper Assembled Upper Receiver
$165.99 Original price $124.99
Glock OEM Slide Lock Spring 19/23/32 SP02317
Glock OEM Slide Lock Spring 19/23/32 SP02317
$9.99 Original price $4.99
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
$164.99 Original price $124.99
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
$165.99 Original price $124.99
Davidson Defense Shadow Protocol 16-inch AR-15 5.56 NATO Rifle Full Build Kit
Davidson Defense Shadow Protocol 16-inch AR-15 5.56 NATO Rifle Full Build Kit
$329.99 Original price $244.99
Davidson Defense Vanyar (Suppressor Ready) 16.5-inch AR-15 5.56 NATO Rifle Full Build Kit
Davidson Defense Vanyar (Suppressor Ready) 16.5-inch AR-15 5.56 NATO Rifle Full Build Kit
$314.99 Original price $239.99
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
$311.99 Original price $234.99

New Releases

Spike's Tactical Calico Jack Rifle Lower Build Kit, M4 Style FDE Buttstock
Spike's Tactical Calico Jack Rifle Lower Build Kit, M4 Style FDE Buttstock
$211.99 Original price $159.99
Spike's Tactical Calico Jack Rifle Lower Build Kit, Team Accessories M4 Style Butt Stock
Spike's Tactical Calico Jack Rifle Lower Build Kit, Team Accessories M4 Style Butt Stock
$198.99 Original price $149.99
Spike's Tactical Calico Jack Rifle Lower Build Kit, Special Operations Stock
Spike's Tactical Calico Jack Rifle Lower Build Kit, Special Operations Stock
$198.99 Original price $149.99
Spike's Tactical Calico Jack Rifle Lower Build Kit, Ranger Stock
Spike's Tactical Calico Jack Rifle Lower Build Kit, Ranger Stock
$218.99 Original price $164.99
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 [668]

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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
$624.99 $469.99 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
$499.99 $379.99 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
$469.99 $354.99 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
$469.99 $354.99 Sale
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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
$434.99 $329.99 Sale
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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
$404.99 $304.99 Sale
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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
$344.99 $259.99 Sale
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Davidson Defense 'Decker' 16-inch AR-15 5.56 NATO Nitride Rifle Complete Upper Build
Davidson Defense 'Decker' 16-inch AR-15 5.56 NATO Nitride Rifle Complete Upper Build
$489.99 $369.99 Sale
In Stock. Free Shipping.
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Davidson Defense 'Griffin' 8.5-inch AR-15 5.56 NATO Nitride Pistol Upper Build Kit
Davidson Defense 'Griffin' 8.5-inch AR-15 5.56 NATO Nitride Pistol Upper Build Kit
$164.99 $124.99 Sale
In Stock.
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Davidson Defense 'Griffin' 8.5-inch AR-15 5.56 NATO Nitride Pistol Complete Upper Build
Davidson Defense 'Griffin' 8.5-inch AR-15 5.56 NATO Nitride Pistol Complete Upper Build
$244.99 $184.99 Sale
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Davidson Defense 'Griffin w/ SBA3' 8.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
Davidson Defense 'Griffin w/ SBA3' 8.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
$394.99 $299.99 Sale
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Davidson Defense 'Griffin w/ SBM4' 8.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
Davidson Defense 'Griffin w/ SBM4' 8.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
$349.99 $264.99 Sale
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Davidson Defense 'Griffin w/ KAK' 8.5-inch AR-15 5.56 NATO Nitride Rifle Full Build Kit
Davidson Defense 'Griffin w/ KAK' 8.5-inch AR-15 5.56 NATO Nitride Rifle Full Build Kit
$334.99 $249.99 Sale
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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 $179.99 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
$324.99 $244.99 Sale
In Stock.
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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
$384.99 $289.99 Sale
In Stock. Free Shipping.
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DD 'Rogue Renegade' 16
DD 'Rogue Renegade' 16" AR-15 5.56 NATO Stainless Rifle Complete Upper Build
$319.99 $239.99 Sale
In Stock.
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DD 'Rogue Renegade' 16
DD 'Rogue Renegade' 16" AR-15 5.56 NATO Stainless Rifle Upper Build Kit
$239.99 $179.99 Sale
In Stock.
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'Cobblestone Prairie' 10.5-inch AR-15 5.56 NATO Phosphate Pistol Upper Build Kit
'Cobblestone Prairie' 10.5-inch AR-15 5.56 NATO Phosphate Pistol Upper Build Kit
$179.99 $134.99 Sale
In Stock.
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'Cobblestone Prairie ' 10.5-inch AR-15 5.56 NATO Phosphate Pistol Complete Upper Build
'Cobblestone Prairie ' 10.5-inch AR-15 5.56 NATO Phosphate Pistol Complete Upper Build
$259.99 $194.99 Sale
In Stock.
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'Cobblestone Prairie ' 10.5-inch AR-15 5.56 NATO Phosphate Pistol Full Build Kit
'Cobblestone Prairie ' 10.5-inch AR-15 5.56 NATO Phosphate Pistol Full Build Kit
$349.99 $264.99 Sale
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'Cobblestone Prairie ' 10.5-inch AR-15 5.56 NATO Phosphate Pistol Full Build Kit
'Cobblestone Prairie ' 10.5-inch AR-15 5.56 NATO Phosphate Pistol Full Build Kit
$409.99 $309.99 Sale
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'Cobblestone Prairie ' 10.5-inch AR-15 5.56 NATO Phosphate Pistol Full Build Kit
'Cobblestone Prairie ' 10.5-inch AR-15 5.56 NATO Phosphate Pistol Full Build Kit
$364.99 $274.99 Sale
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'Nimbus Mist ' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
'Nimbus Mist ' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$224.99 $169.99 Sale
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