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  • Top Sellers

Top Sellers

DD
DD "Ammosaurus" 16.5" AR-15 5.56 Nitride Full Build Kit W/ Aero
$649.99 $334.99
Davidson Defense
Davidson Defense "Choplifter" AR-15 Upper Receiver 16" 5.56 NATO 4150 CMV QPQ Nitride 1-8T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$689.99 $374.99
Davidson Defense
Davidson Defense "Cordova" AR-15 Pistol Upper Receiver 16.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$804.99 $434.99
Davidson Defense 'Kabocha' 4
Davidson Defense 'Kabocha' 4" AR-15 9MM NIT Upper Build Kit
$479.99 $159.99
Davidson Defense
Davidson Defense "Amygdala" AR-15 Pistol Upper Receiver 6" 9MM 4150 CMV QPQ Nitride 1-10T Barrel 4" M-Lok Handguard (Assembled or Unassembled)
$674.99 $359.99
Davidson Defense
Davidson Defense "Sprite" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$469.99 $239.99
Davidson Defense 'Yugure' 5.25
Davidson Defense 'Yugure' 5.25" AR-15 / AR-9 9MM Nitride Upper Build Kit
$479.99 $164.99
Davidson Defense 'Cavalier' 16
Davidson Defense 'Cavalier' 16" AR-15 5.56 Nitride Full Build Kit
$684.99 $369.99
Davidson Defense
Davidson Defense "Vali" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$509.99 $194.99
Davidson Defense
Davidson Defense "Amygdala" 6" AR-15 9mm Pistol Full Build Kit
$754.99 $319.99
Davidson Defense
Davidson Defense "Surd" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$454.99 $219.99
Davidson Defense
Davidson Defense "Corncrake" AR-15 Pistol Upper Receiver 8.5" 9MM 4150 CMV QPQ Nitride 1-10T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$704.99 $389.99

New Releases

Davidson Defense 'Pocketbook' 7.5
Davidson Defense 'Pocketbook' 7.5" AR-15 7.62x39 Nitride Pistol Upper Build Kit
$534.99 $219.99
Davidson Defense 'Hill Of Beans' 16
Davidson Defense 'Hill Of Beans' 16" AR-15 5.56 NATO Nitride Rifle Full Build
$704.99 $389.99
Davidson Defense 'Elemental' 16.25
Davidson Defense 'Elemental' 16.25" AR-15 7.62x39 Nitride Rifle Full Build Kit
$709.99 $394.99
Finish Your Build Kit: LR-308 Rifle A2 Buttstock KIT & Buffer Tube Kit + Aero M5 .308 LPK
Finish Your Build Kit: LR-308 Rifle A2 Buttstock KIT & Buffer Tube Kit + Aero M5 .308 LPK
$174.99 $139.99

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  1. Home
  2. AR-15 & LR-308 Upper Builds

AR-15 & LR-308 Upper Builds


At Davidson Defense we carry a vast selection of quality AR-15 Complete Upper Receivers and AR-15 Build Kits at the best prices found online. Whether you’re building your first AR-15 or adding to your growing collection with one of our LR-308 Rifle Uppers or 9MM AR-9 Pistol Build Kits we have you covered. Some of our set-ups even include a BCG, Charging Handle, Lower Parts Kit and Stock with Buffer Tube. We make it easy and affordable to build an AR-15 by offering both assembled and unassembled options in all the popular calibers.

  • Elite Series | AR-15 & LR-308/AR-10 Upper Build Kits
  • All AR-15 & LR-308/AR-10 | Upper Builds by Caliber
  • AR-15 & LR-308/AR-10 | 80% Upper Build Kits
  • AR-15 & LR-308 | Full Build Kits (Everything Minus Lower)
  • AR-15 & LR-308/AR-10 | Complete Upper Build Kits
  • AR-15 & LR-308/AR-10 | Upper Build Kits
  • Budget Builds $199.99 and Under
  • Full Build Kits Under $400
  • AR-15 A2 Retro Style Upper Build Kits
  • AR-15 Side Charging Upper Receiver Builds
  • AR-15 Upper Build Kit - Left Hand Ejection
  • Pre-Assembled Upper Builds
  • Upper Build Kits w/Optic

Products [984]

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Gorilla Arms 9mm 16
Gorilla Arms 9mm 16" Contour W/ 1:10 Twist Nitride Barrel &12" M-Lok Slant Pro Handguard - Made in USA Combo Deal
$299.99 $129.99 Sale
In Stock.
Add To Cart
DD Custom Arms AR-15
DD Custom Arms AR-15 "Jackhammer" Rifle Kit .458 SOCOM 16" 4150 CMV Parkerized 1:14T HBAR Barrel Black Diamond Series 15" M-LOK Handguard
$614.99 $324.99 Sale
In Stock.
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Davidson Defense
Davidson Defense "Gargoyle" AR-15 Upper Receiver 20" Ultra-Match 6.5 Grendel 4150 CMV H-BAR 1-8T Barrel 17" KeyMod Handguard (Assembled or Unassembled)
$464.99 $254.99 Sale
Out of Stock. More on the way.
Davidson Defense
Davidson Defense "Earthquake" AR-15 Featuring An Anderson Upper Receiver 16" .450 Bushmaster 1-24T 4150 CMV Heavy Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$789.99 $459.99 Sale
In Stock.
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Davidson Defense
Davidson Defense "Siamese Fireback" AR-15 Pistol Upper Receiver 5.25" 9MM QPQ Nitride 1-10T KAK Inudstries Barrel 7" KeyMod Handguard (Assembled or Unassembled)
$409.99 $204.99 Sale
In Stock.
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Davidson Defense
Davidson Defense "Legend" AR-15 Upper Receiver 16" Ultra-Match 350 Legend 4150 CMV 1-16T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$489.99 $299.99 Sale
Currently out of stock - More on the way
Davidson Defense
Davidson Defense "Oryx" AR-15 Featuring Aero Precision Upper Receiver 16" .350 Legend 1-16T 4150 CMV Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$494.99 $299.99 Sale
Currently out of stock - More on the way
Davidson Defense
Davidson Defense "Grackle" AR-15 Pistol Upper Receiver 4" 9MM QPQ Nitride 1-10T KAK Industries Barrel 4" M-Lok Handguard (Assembled or Unassembled)
$444.99 $209.99 Sale
In Stock.
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Davidson Defense
Davidson Defense "Kaiser" AR-15 Featuring War Dog Industries Upper 18" Faxon Firearms 5.56 NATO 1-8T QPQ Nitride Barrel 15" Davidson Defense M-Lok Handguard (Assembled or Unassembled)
$624.99 $374.99 Sale
In Stock.
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DD Elite Series
DD Elite Series "Dux" 8.5" AR-15 9MM Nitride Full Build Kit W/ Aero, Faxon
$584.99 $269.99 Sale
In Stock.
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Davidson Defense
Davidson Defense "Beak" AR-15 Pistol Upper Receiver 10.5" .223 Wylde 4150 CMV QPQ Nitride 1-7T Barrel 10" KeyMod Handguard (Assembled or Unassembled)
$469.99 $229.99 Sale
In Stock.
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Davidson Defense
Davidson Defense "Color-Blind" AR-15 Pistol Upper Receiver 10.5" .223 Wylde 4150 CMV QPQ Nitride 1-7T Barrel 10" KeyMod Handguard (Assembled or Unassembled)
$514.99 $339.99 Sale
In Stock.
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DD Elite Series
DD Elite Series "Dux" 8.5" AR-15 9MM Nitride Upper Build Kit W/ Faxon
$569.99 $254.99 Sale
In Stock.
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Davidson Defense
Davidson Defense "Keen" AR-15 Pistol Upper Receiver 8.5" 9MM 4150 CMV QPQ Nitride Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$504.99 $189.99 Sale
In Stock.
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Davidson Defense
Davidson Defense "Kai" AR-15 Upper Receiver 16" .458 SOCOM 4150 CMV 1-14T Heavy Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$509.99 $259.99 Sale
In Stock.
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Davidson Defense
Davidson Defense "Surd" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$454.99 $219.99 Sale
In Stock.
Select Options
Davidson Defense
Davidson Defense "Sprite" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$469.99 $239.99 Sale
In Stock.
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DD Custom Arms
DD Custom Arms "Asity" LR-308 Featuring Aero Precision M5 Upper 22" 6.5 Creedmoor 4150 CMV QPQ Nitride 1-8T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$684.99 $369.99 Sale
In Stock.
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DD Custom Arms Elite Series
DD Custom Arms Elite Series "Monza" AR-15 Pistol Featuring Aero Precision Upper Receiver 11.5" Rosco Manufacturing 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 12" Unique AR Handguard (Assembled or Unassembled)
$649.99 $379.99 Sale
In Stock.
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DD Elite Series
DD Elite Series "Dux" 8.5" AR-15 9MM Nitride Upper Build Kit W/: Aero Precision and Faxon Firearms
$509.99 $269.99 Sale
In Stock.
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Davidson Defense
Davidson Defense "Tributo" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$479.99 $239.99 Sale
In Stock.
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Davidson Defense
Davidson Defense "Fire Hawk" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$464.99 $234.99 Sale
In Stock.
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DD Custom Arms Elite Series
DD Custom Arms Elite Series "Half Life" AR-15 Featuring Davidson Defense Upper Receiver 16" Rosco Manufacturing 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 15" Unique AR Handguard (Assembled or Unassembled)
$734.99 $419.99 Sale
In Stock.
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Davidson Defense
Davidson Defense "Combai" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 416R Stainless 1-7T Barrel 7" Unique AR Handguard (Assembled or Unassembled)
$549.99 $294.99 Sale
In Stock.
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333 N State St. Orem, Utah 84057
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