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Shop by Caliber > AR-15 & LR-308/AR-10 Complete Upper Build Kits

Top Sellers

Matador Arms MAT-9 Upper Receiver Assembly - Gen2, Black
Matador Arms MAT-9 Upper Receiver Assembly - Gen2, Black
$599.99 $574.99
MMC 'Here and Now' 7.5-inch AR-15 5.56 NATO Manganese Phosphate Rifle Complete Upper Build Kit
MMC 'Here and Now' 7.5-inch AR-15 5.56 NATO Manganese Phosphate Rifle Complete Upper Build Kit
$574.99 $309.99
MMC 'Aethelred V2' 16-inch AR-15 5.56 NATO Nitride Rifle Complete Upper Build Kit
MMC 'Aethelred V2' 16-inch AR-15 5.56 NATO Nitride Rifle Complete Upper Build Kit
$524.99 $259.99
Davidson Defense '9mm Lightshow - Grey' 16
Davidson Defense '9mm Lightshow - Grey' 16" AR-15 9mm Nitride Rifle Complete Upper Build Kit
$529.99 $264.99
Davidson Defense 'Lightshow II - Purple' 16
Davidson Defense 'Lightshow II - Purple' 16" AR-15 5.56 NATO Nitride Rifle Complete Upper Build Kit
$529.99 $264.99

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  1. Home
  2. AR-15 & AR-10 Build Kits
  3. Complete Upper Build Kits
  4. Shop by Caliber > AR-15 & LR-308/AR-10 Complete Upper Build Kits
  • .22-250 > LR-308/AR-10 Complete Upper Build Kits
  • 12.7x42 > AR-15 Complete Upper Build Kits
  • 8.6 Blackout > LR-308/AR-10 Complete Upper Build Kits
  • 5.56 NATO > AR-15 Complete Upper Build Kits
  • .300 Blackout > AR-15 Complete Upper Build Kits
  • 9mm > AR-15 Complete Upper Build Kits
  • .223 Wylde > AR-15 Complete Upper Build Kits
  • 7.62x39mm > AR-15 Complete Upper Build Kits
  • .458 SOCOM > AR-15 Complete Upper Build Kits
  • .350 Legend > AR-15 Complete Upper Build Kits
  • .450 Bushmaster > AR-15 Complete Upper Build Kit
  • 6.5 Grendel > AR-15 Complete Upper Build Kits
  • 6mm ARC > AR-15 Complete Upper Build Kits
  • 6.5 Creedmoor > LR-308/AR-10 Complete Upper Build Kits
  • .308 Winchester > LR-308/AR-10 Complete Upper Build Kits

Products [252]

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MMC Arms
MMC Arms "Evansville" LR-308 Featuring A Davidson Defense DPMS Style Upper Receiver 16" .308 WIN 4150 CMV QPQ Nitride 1-10T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$694.99 $364.99 Sale
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MMC Arms
MMC Arms "Ardere" LR-308 Featuring A Davidson Defense DPMS Style Upper Receiver 20" .308 WIN 4150 CMV QPQ Nitride 1-10T Barrel 16.5" M-Lok Handguard (Assembled or Unassembled)
$689.99 $414.99 Sale
Out of Stock
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Davidson Defense 'Vali' 7.5
Davidson Defense 'Vali' 7.5" AR-15 5.56 NATO Nitride Pistol Complete Upper Build Kit
$524.99 $259.99 Sale
In Stock
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MMC 'Atlus' 18
MMC 'Atlus' 18" LR-308 .308 Win Stainless Rifle Complete Upper Build Kit
$794.99 $529.99 Sale
In Stock
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Davidson Defense 'Lightshow II - Purple' 16
Davidson Defense 'Lightshow II - Purple' 16" AR-15 5.56 NATO Nitride Rifle Complete Upper Build Kit
$529.99 $264.99 Sale
In Stock
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Davidson Defense 'Lightshow II - Red' 16
Davidson Defense 'Lightshow II - Red' 16" AR-15 5.56 NATO Nitride Rifle Complete Upper Build Kit
$524.99 $259.99 Sale
In Stock
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Davidson Defense 'Pragma' 16.25
Davidson Defense 'Pragma' 16.25" AR-15 7.62x39 Nitride Rifle Complete Upper Build Kit
$569.99 $304.99 Sale
In Stock
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Davidson Defense 'Talisman' 16
Davidson Defense 'Talisman' 16" AR-15 5.56 NATO Nitride Rifle Complete Upper Build Kit
$534.99 $269.99 Sale
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Davidson Defense 'Lightshow II - Black' 16
Davidson Defense 'Lightshow II - Black' 16" AR-15 5.56 NATO Nitride Rifle Complete Upper Build Kit
$529.99 $264.99 Sale
In Stock
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Davidson Defense 'Mangrove' 16
Davidson Defense 'Mangrove' 16" AR-15 5.56 NATO Stainless Rifle Complete Upper Build W/ .22 LR Conversion Kit
$704.99 $439.99 Sale
In Stock
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Complete 18
Complete 18" 6.5 Creedmoor Rifle Slick Side Upper Assembly
$694.99 $379.99 Sale
In Stock
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Davidson Defense 'Kabocha' 4
Davidson Defense 'Kabocha' 4" AR-15 9mm Nitride Pistol Complete Upper Build Kit
$494.99 $229.99 Sale
In Stock
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Davidson Defense 'Dauterive' 16.5
Davidson Defense 'Dauterive' 16.5" AR-15 9mm Nitride Rifle Complete Upper Build Kit
$529.99 $264.99 Sale
In Stock
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Davidson Defense 'Nitty Gritty' 16
Davidson Defense 'Nitty Gritty' 16" AR-15 5.56 NATO Nitride Rifle Complete Upper Build
$549.99 $284.99 Sale
In Stock
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Davidson Defense 'Strigoi' 16.5
Davidson Defense 'Strigoi' 16.5" AR-15 5.56 NATO Nitride Left Handed Rifle Complete Upper Build Kit
$579.99 $314.99 Sale
In Stock
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Davidson Defense 'Hammer Buster' 10.5
Davidson Defense 'Hammer Buster' 10.5" AR-15 .223 Nitride Pistol Complete Upper Build Kit
$554.99 $289.99 Sale
In Stock
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MMC 'Insmouth' 8.5
MMC 'Insmouth' 8.5" AR-15 9mm Nitride Pistol Complete Upper Build Kit
$559.99 $294.99 Sale
In Stock
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MMC 'Shadow' 16
MMC 'Shadow' 16" AR-15 9mm Nitride Rifle Complete Upper Build Kit
$574.99 $309.99 Sale
In Stock
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Davidson Defense 'Fayetteville' 16
Davidson Defense 'Fayetteville' 16" AR-15 .350 Legend Phosphate Rifle Complete Upper Build
$634.99 $369.99 Sale
In Stock
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Davidson Defense 'Le Tigre' 4.5
Davidson Defense 'Le Tigre' 4.5" AR-15 9mm Nitride Pistol Complete Upper Build
$479.99 $214.99 Sale
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Davidson Defense 'Magnum' 4.5
Davidson Defense 'Magnum' 4.5" AR-15 9mm Nitride Pistol Complete Upper Build
$489.99 $224.99 Sale
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Davidson Defense 'Mugatu' 4.5
Davidson Defense 'Mugatu' 4.5" AR-15 9mm Nitride Pistol Complete Upper Build
$494.99 $229.99 Sale
In Stock
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Davidson Defense 'Dayton' 4.5
Davidson Defense 'Dayton' 4.5" AR-15 .22 LR Nitride Pistol Complete Upper Build Kit
$634.99 $369.99 Sale
In Stock
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Davidson Defense 'Blue Steel' 4.5
Davidson Defense 'Blue Steel' 4.5" AR-15 9mm Nitride Pistol Complete Upper Build
$489.99 $224.99 Sale
In Stock
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