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

Top Sellers

Davidson Defense 'Morphinae' 7.5
Davidson Defense 'Morphinae' 7.5" AR-15 .300 Blackout Manganese Phosphate Pistol Upper Build Kit
$484.99 $199.99
Davidson Defense 'The Vampire V2' 16
Davidson Defense 'The Vampire V2' 16" AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$499.99 $214.99
Davidson Defense 'Twardy' 20
Davidson Defense 'Twardy' 20" LR-308 .308 Win Nitride Rifle Upper Build Kit
$649.99 $334.99
Davidson Defense
Davidson Defense "Clank" 8" AR-15 9MM Pistol Nitride Upper Build
$459.99 $174.99
Davidson Defense 'Bullet Farmer' 18
Davidson Defense 'Bullet Farmer' 18" LR-308 .308 Win Nitride Rifle Upper Build Kit
$609.99 $294.99
Davidson Defense 'Siege' 14.5
Davidson Defense 'Siege' 14.5" AR-15 5.56 NATO Manganese Phosphate Pistol Upper Build Kit
$594.99 $309.99
Davidson Defense 'Tarul' 13.7
Davidson Defense 'Tarul' 13.7" AR-15 5.56 NATO Nitride Pistol Upper Build Kit
$519.99 $234.99
Davidson Defense 'Wild Child' 10.5
Davidson Defense 'Wild Child' 10.5" AR-15 5.56 NATO Nitride Pistol Upper Build Kit
$494.99 $209.99
Davidson Defense 'Black Ice' 4.5
Davidson Defense 'Black Ice' 4.5" AR-15 9mm Nitride Pistol Upper Build Kit
$439.99 $154.99
Davidson Defense 'Shuvit' 18
Davidson Defense 'Shuvit' 18" AR-15 12.7x42 Manganese Phosphate Rifle Upper Build Kit
$529.99 $314.99
Davidson Defense 'The Stinger' 7.5
Davidson Defense 'The Stinger' 7.5" AR-15 .223 Stainless Pistol Upper Build Kit
$484.99 $199.99
Davidson Defense 'Van Cleef' 8
Davidson Defense 'Van Cleef' 8" AR-15 .45 ACP Nitride Pistol Upper Build Kit
$384.99 $179.99
Davidson Defense
Davidson Defense"Lil Titan" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$484.99 $199.99
MMC Arms 'Darjeeling' AR-15 Rifle Upper Build Kit Featuring Davidson Defense Upper .223 Wylde 17
MMC Arms 'Darjeeling' AR-15 Rifle Upper Build Kit Featuring Davidson Defense Upper .223 Wylde 17" 416R Stainless Steel 1-8T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$519.99 $234.99
MMC Arms
MMC Arms"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
Davidson Defense 'Crevalle' 16.25
Davidson Defense 'Crevalle' 16.25" AR-15 7.62x39 Nitride Rifle Upper Build Kit
$524.99 $239.99

Manufacturer

  1. Home
  2. AR-15 & AR-10 Build Kits
  3. Upper Build Kits
  4. Shop by Caliber > AR-15 & LR-308/AR-10 Upper Build Kits
  • 12.7x42 > AR-15 Upper Build Kits
  • 5.56 NATO > AR-15 Upper Build Kit
  • .223 Wylde > AR-15 Upper Build Kits
  • .300 Blackout > AR-15 Upper Build Kits
  • 9mm > AR-15 Upper Build Kits
  • 7.62x39 > AR-15 Upper Build Kits
  • .458 SOCOM > AR-15 Upper Build Kits
  • .350 Legend > AR-15 Upper Build Kits
  • .450 Bushmaster > AR-15 Upper Build Kits
  • 6.5 Grendel > AR-15 Upper Build Kits
  • 6mm ARC > AR-15 Upper Build Kits
  • .308 Winchester > LR-308/AR-10 Upper Build Kits
  • 6.5 Creedmoor > LR-308/AR-10 Upper Build Kits

Products [518]

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Davidson Defense AR-15
Davidson Defense AR-15"Axe" Assembled Pistol Upper Receiver 7.5" 5.56 NATO Stainless 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$424.99 $229.99 Sale
In Stock
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MMC Arms
MMC Arms"Tectonic" AR-15 Featuring Aero Precision Upper Receiver 16" .458 SOCOM 1-14T 4150 CMV Heavy Barrel 13.5" KeyMod Handguard (Assembled or Unassembled)
$499.99 $229.99 Sale
In Stock
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MMC Arms Top Shelf
MMC Arms Top Shelf"Terrier" AR-15 Featuring A Davidson Defense Upper Receiver 16" KAK Industries 9MM 1-10T QPQ Nitride Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$489.99 $249.99 Sale
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Davidson Defense 'VHS' 7.5
Davidson Defense 'VHS' 7.5" AR-15 5.56 NATO Phosphate Pistol Upper Build Kit
$474.99 $189.99 Sale
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MMC Arms
MMC Arms"Scorcher" AR-15 Featuring Aero Precision Upper Receiver 18" Ultra-Match 6.5 Grendel 1-8T Stainless Heavy Barrel 15" KeyMod Handguard (Assembled or Unassembled)
$479.99 $259.99 Sale
Out of Stock
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MMC Arms
MMC Arms"Raw" AR-15 Featuring Aero Precision Upper Receiver 16" .458 SOCOM 1-14T 4150 CMV Heavy Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$489.99 $264.99 Sale
In Stock
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MMC Arms Elite Series
MMC Arms Elite Series "Thumper" AR-15 Pistol Featuring Aero Precision Upper Receiver 10.5" .450 Bushmaster 1-24T 4150 CMV Heavy Barrel Premium 10" KeyMod Handguard (Assembled or Unassembled)
$504.99 $284.99 Sale
Out of Stock
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MMC Arms
MMC Arms"Fiery Furnace" AR-15 Featuring Aero Precision Upper Receiver 16" .450 Bushmaster 1-24T 4150 CMV Heavy Barrel 15" KeyMod Handguard (Assembled or Unassembled)
$509.99 $309.99 Sale
Out of Stock
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MMC Arms
MMC Arms"Butch" AR-15 Featuring Aero Precision Upper Receiver 18" Ultra-Match .450 Bushmaster 1-24T 4150 CMV Heavy Barrel 16.5" M-Lok Handguard (Assembled or Unassembled)
$504.99 $259.99 Sale
Out of Stock
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MMC Arms
MMC Arms "Mini Sledge" AR-15 Featuring Aero Precision Upper Receiver 10.5" .450 Bushmaster 1-24T 4150 CMV Heavy Barrel 10" KeyMod Handguard (Assembled or Unassembled)
$549.99 $284.99 Sale
Out of Stock
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Davidson Defense
Davidson Defense"Lil Titan" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$484.99 $199.99 Sale
In Stock
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MMC
MMC "Battle Cry" 20" LR-308 6.5 Creedmoor Nitride Upper Build W/: Aero Precision and Helius Tactical
$649.99 $374.99 Sale
In Stock
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MMC Arms
MMC Arms "Arame" AR-15 Featuring Anderson Upper Receiver 16" .458 SOCOM 4150 CMV 1-14T Heavy Barrel 15" KeyMod Handguard (Assembled or Unassembled)
$484.99 $259.99 Sale
In Stock
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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
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MMC Arms
MMC Arms "Code Blue" LR-308 Featuring Aero Precision M5 Upper 24" Ultra-Match .308 WIN Stainless 1-10T Straight Fluted Heavy Bull Barrel 19" M-Lok Handguard (Assembled or Unassembled)
$674.99 $359.99 Sale
Out of Stock
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MMC Arms
MMC Arms "Solidago" AR-15 Featuring Aero Precision Upper Receiver 16" .458 SOCOM 1-14T 4150 CMV Heavy Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$504.99 $304.99 Sale
Out of Stock
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MMC
MMC "Fulvous" 20" LR-308 6.5 Creedmoor Nitride Upper Build W/: Aero Precision and Helius Tactical
$689.99 $374.99 Sale
In Stock
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MMC Top Shelf
MMC Top Shelf "Dux" 8.5" AR-15 9MM Nitride Full Build Kit W/ Aero, Faxon
$569.99 $254.99 Sale
In Stock
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MMC Arms
MMC Arms "Loon" LR-308 Featuring Aero Precision M5 Upper 22" 6.5 Creedmoor 4150 CMV QPQ Nitride 1-8T Barrel 16.5" M-Lok Handguard (Assembled or Unassembled)
$644.99 $319.99 Sale
Out of Stock
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Davidson Defense
Davidson Defense "Forsaken" AR-15 Upper Receiver 18" .350 Legend 4150 CMV 1-16T Heavy Barrel 13.5" M-Lok Handguard (Assembled or Unassembled)
$484.99 $289.99 Sale
Out of Stock
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Ace High Arms
Ace High Arms "Devilfish" AR-15 Upper Receiver 16" .458 SOCOM 4150 CMV Barrel 12" M-Lok Handguard (Assembled or Unassembled)
$479.99 $239.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Coble" AR-15 Upper Receiver 20" .350 Legend 4150 CMV 1-16T Heavy Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$494.99 $259.99 Sale
Out of Stock
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MMC Arms
MMC Arms "Wallace" LR-308 Featuring Aero Precision M5 Upper 20" 6.5 Creedmoor 4150 CMV QPQ Nitride 1-8T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$574.99 $374.99 Sale
In Stock
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MMC Arms
MMC Arms "Ange" LR-308 Featuring Aero Precision M5 Upper 10.5" .308 WIN 4150 CMV QPQ Nitride Heavy Barrel 12" M-Lok Handguard (Assembled or Unassembled)
$529.99 $289.99 Sale
Out of Stock
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1 2 3 4 5 6 7 ...22 Next Page View All
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