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

Upper Builds by Caliber

trademark
Davidson Defense has options to suit all of the most popular calibers. If you're looking to try a new round or starting a brand new build, these are great options at awesome prices to get you started.


Top Sellers

Davidson Defense 'Armada' 16
Davidson Defense 'Armada' 16" AR-15 .350 Legend NIT Full Build Kit
$709.99 Original price $429.99
Davidson Defense 'Ranger's Descent w/ FLX01' 16.5-inch AR-15 5.56 NATO Nitride Rifle Full Build Kit
Davidson Defense 'Ranger's Descent w/ FLX01' 16.5-inch AR-15 5.56 NATO Nitride Rifle Full Build Kit
$524.99 Original price $359.99
Davidson Defense 'Rapid Resolution w/ TF Stealth Sight' 16.5-inch AR-15 5.56 NATO Nitride Rifle Full Build Kit
Davidson Defense 'Rapid Resolution w/ TF Stealth Sight' 16.5-inch AR-15 5.56 NATO Nitride Rifle Full Build Kit
$459.99 Original price $314.99
DD Custom Arms
DD Custom Arms "Jetpac" AR-15 Davidson Defense Upper Receiver 16" .223 Wylde Phosphate 1-8T Barrel 12" Premium M-Lok Handguard
$594.99 Original price $389.99
Davidson Defense 'Frogger V223' 16-inch AR-15 .223 Wylde Phosphate Rifle Upper Build Kit
Davidson Defense 'Frogger V223' 16-inch AR-15 .223 Wylde Phosphate Rifle Upper Build Kit
$244.99 Original price $164.99
Davidson Defense
Davidson Defense "Golden Eagle" AR-15 Upper Receiver 16" .300 Blackout 4150 CMV QPQ Nitride 1-8T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$459.99 Original price $299.99
Davidson Defense 'Frogger V223' 16-inch AR-15 .223 Wylde Phosphate Rifle Full Build Kit
Davidson Defense 'Frogger V223' 16-inch AR-15 .223 Wylde Phosphate Rifle Full Build Kit
$459.99 Original price $314.99
Davidson Defense 'Rapid Resolution w/ FLX01' 16.5-inch AR-15 5.56 NATO Nitride Rifle Full Build Kit
Davidson Defense 'Rapid Resolution w/ FLX01' 16.5-inch AR-15 5.56 NATO Nitride Rifle Full Build Kit
$504.99 Original price $344.99
Matador Arms MAT-9 Upper Receiver Assembly - Gen2, Black
Matador Arms MAT-9 Upper Receiver Assembly - Gen2, Black
$574.99 Original price $429.99
Davidson Defense 'Ranger's Descent w/ TF Stealth Sight' 16.5-inch AR-15 5.56 NATO Nitride Rifle Full Build Kit
Davidson Defense 'Ranger's Descent w/ TF Stealth Sight' 16.5-inch AR-15 5.56 NATO Nitride Rifle Full Build Kit
$484.99 Original price $329.99
Davidson Defense
Davidson Defense "Horntails" 7.5" AR-15 .300 Blackout Pistol Upper Build
$604.99 Original price $199.99
Davidson Defense 'Ammosaurus' 16
Davidson Defense 'Ammosaurus' 16" AR-15 5.56 NATO Nitride Rifle Full Kit Drop-in Trigger Ready
$634.99 Original price $414.99

New Releases

Davidson Defense 'Griffin w/ SB Tactical SBA3 Brace' 7.5-inch AR-15 .223 Wylde Nitride Pistol Full Build Kit
Davidson Defense 'Griffin w/ SB Tactical SBA3 Brace' 7.5-inch AR-15 .223 Wylde Nitride Pistol Full Build Kit
Free Shipping.
$564.99 Original price $369.99
Davidson Defense 'Griffin w/ Gauntlet Arms Brace' 7.5-inch AR-15 .223 Wylde Nitride Pistol Full Build Kit
Davidson Defense 'Griffin w/ Gauntlet Arms Brace' 7.5-inch AR-15 .223 Wylde Nitride Pistol Full Build Kit
Free Shipping.
$459.99 Original price $299.99
Davidson Defense 'Overlord 7.62 w/ SB Tactical SBA5 Brace' 7.5-inch AR-15 7.62x39 Phosphate Pistol Full Build Kit
Davidson Defense 'Overlord 7.62 w/ SB Tactical SBA5 Brace' 7.5-inch AR-15 7.62x39 Phosphate Pistol Full Build Kit
Free Shipping.
$664.99 Original price $434.99
Davidson Defense 'Overlord 7.62 w/ SB Tactical SBA3 Brace' 7.5-inch AR-15 7.62x39 Phosphate Pistol Full Build Kit
Davidson Defense 'Overlord 7.62 w/ SB Tactical SBA3 Brace' 7.5-inch AR-15 7.62x39 Phosphate Pistol Full Build Kit
Free Shipping.
$664.99 Original price $434.99
Upper Builds by Caliber subcategories
  • 12.7x42 Upper Builds
  • 22LR AR-15 Upper Builds
  • 8.6 Blackout AR-15 Upper Builds
  • 5.56 NATO AR-15 Upper Builds
  • .22LR AR-15 Upper Builds
  • .223 Wylde AR-15 Upper Builds
  • 6MM ARC AR-15 Upper Builds
  • 6.5 Creedmoor LR-308/AR-10 Upper Builds
  • 6.5 Grendel AR-15 Upper Builds
  • 7.62x39 AR-15 Upper Builds
  • .300 Blackout AR-15 Upper Builds
  • .308 Winchester LR-308/AR-10 Upper Builds
  • 8.6 Blackout LR-308/AR-10 Upper Builds
  • .350 Legend AR-15 Upper Builds
  • 9mm AR-15 Upper Builds
  • 10MM AR-15 Upper Builds
  • .45 ACP AR-15 Upper Builds
  • .450 Bushmaster AR-15 Upper Builds
  • .458 SOCOM AR-15 Upper Builds
  • 12.7x42 AR-15 Upper Builds

Products [1258]

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Davidson Defense “Skylark” AR-15 Upper Receiver 16.5” Ultra-Match 5.56 NATO QPQ Nitride 1-7T Barrel 15” KeyMod Handguard (Assembled or Unassembled)
Davidson Defense “Skylark” AR-15 Upper Receiver 16.5” Ultra-Match 5.56 NATO QPQ Nitride 1-7T Barrel 15” KeyMod Handguard (Assembled or Unassembled)
$469.99 $274.99 Sale
In Stock. Free Shipping.
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Davidson Defense
Davidson Defense "Graveler" AR-15 Upper Receiver 16" 7.62x39 4150 CMV H-BAR 1-10T Barrel 15" KeyMod Handguard (Assembled or Unassembled)
$429.99 $254.99 Sale
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Davidson Defense
Davidson Defense "Buzzard" AR-15 / AR-9 Pistol Upper Receiver 7.5" 9MM QPQ Nitride 1-10T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$404.99 $199.99 Sale
Out of Stock. More on the way.
Davidson Defense 'Legend' AR-15 Upper Receiver 16
Davidson Defense 'Legend' AR-15 Upper Receiver 16" Ultra-Match 350 Legend 4150 CMV 1-16T Barrel 15" M-Lok Handguard
$489.99 $299.99 Sale
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Davidson Defense
Davidson Defense "Veiltail" AR-15 Pistol Upper Receiver 7.5" 7.62x39 4150 CMV 1-10T Heavy Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$454.99 $254.99 Sale
In Stock. Free Shipping.
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Davidson Defense
Davidson Defense "Canis Minor" AR-15 Pistol Featuring Aero Precision Upper Receiver 10.5" 7.62x39 1-10T 4150 CMV Barrel 12" M-Lok Handguard
$479.99 $264.99 Sale
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Davidson Defense
Davidson Defense "Canis Minor" AR-15 Pistol Featuring Davidson Defense Upper Receiver 10.5" 7.62x39 1-10T 4150 CMV Barrel 12" M-Lok Handguard
$479.99 $264.99 Sale
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Davidson Defense
Davidson Defense "Reject" AR-15 Upper Receiver 16" .223 Wylde 4150 CMV 1-7T Barrel 15" M-Lok Handguard
$464.99 $264.99 Sale
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Davidson Defense 'Grimace' 7.5
Davidson Defense 'Grimace' 7.5" AR-15 .300 Blackout Manganese Phosphate Pistol Upper Build Kit
$559.99 $244.99 Sale
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Davidson Defense 'Craze' AR-15 Upper Receiver 16
Davidson Defense 'Craze' AR-15 Upper Receiver 16" 7.62x39 4150 CMV 1-10T Heavy Barrel 15" M-Lok Handguard
$479.99 $274.99 Sale
In Stock. Free Shipping.
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Davidson Defense
Davidson Defense "Tectonic" AR-15 Featuring Davidson Defense Upper Receiver 16" .458 SOCOM 1-14T 4150 CMV Heavy Barrel 13.5" KeyMod Handguard (Assembled or Unassembled)
$499.99 $174.99 Sale
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Davidson Defense 'Flame Ball' 7.5'' AR-15 .223 Wylde 1-7T Pistol Build Kit
Davidson Defense 'Flame Ball' 7.5'' AR-15 .223 Wylde 1-7T Pistol Build Kit
$454.99 $264.99 Sale
In Stock. Free Shipping.
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Davidson Defense
Davidson Defense "Noddy" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV QPQ Nitride Barrel 7" M-Lok Handguard
$464.99 $224.99 Sale
In Stock.
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Davidson Defense
Davidson Defense "Ivy" AR-15 Pistol Upper Receiver 7.5" .300 Blackout 4150 CMV 1-8T Heavy Barrel 9" M-Lok Handguard (Assembled or Unassembled)
$569.99 $254.99 Sale
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Davidson Defense 'Fuego' 7.5'' AR-15 5.56 NATO 1-7T Pistol Build Kit
Davidson Defense 'Fuego' 7.5'' AR-15 5.56 NATO 1-7T Pistol Build Kit
$474.99 $229.99 Sale
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Davidson Defense
Davidson Defense "Integra" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$469.99 $259.99 Sale
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Davidson Defense
Davidson Defense "Micro" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$464.99 $264.99 Sale
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Davidson Defense
Davidson Defense "Sergio" 7.5" AR-15 7.62x39 Pistol Upper Build Kit
$479.99 $254.99 Sale
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Davidson Defense
Davidson Defense "Pista" AR-15 Pistol Upper Receiver 7.5".300 Blackout 4150 CMV 1-8T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$554.99 $239.99 Sale
In Stock.
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Davidson Defense
Davidson Defense "Raptor Claw" AR-15 Pistol Upper Receiver 7.5" .300 Blackout 4150 CMV 1-8T Heavy Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$469.99 $254.99 Sale
In Stock. Free Shipping.
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Davidson Defense
Davidson Defense "Maximus" AR-15 Pistol Upper Receiver 7.5" 7.62x39 4150 CMV 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$454.99 $249.99 Sale
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Davidson Defense
Davidson Defense "Athena" AR-15 Pistol Upper Receiver 7.5" 7.62x39 4150 CMV 1-10T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$469.99 $249.99 Sale
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Davidson Defense
Davidson Defense "Vapor" AR-15 Pistol Upper Receiver 7.5" .300 Blackout 4150 CMV 1-8T Heavy Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$554.99 $239.99 Sale
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Davidson Defense 'Anthea' 7.5
Davidson Defense 'Anthea' 7.5" AR-15 .300 Blackout Manganese Phosphate Pistol Upper Build Kit
$559.99 $244.99 Sale
In Stock.
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218 N State Street Orem UT 84057
United States Of America
833-496-6401

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