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  • Polymer80
  1. Home
  2. AR-15 & AR-10 Build Kits
  3. Upper Builds by Caliber

Upper Builds by Caliber

 

Top Sellers

Polymer80 PF940C Compact 80% Blank - Black
Polymer80 PF940C Compact 80% Blank - Black
$149.99 $69.99
Recoil Technologies Micro Low-Profile Gas Block for .750 O.D Barrel Steel
Recoil Technologies Micro Low-Profile Gas Block for .750 O.D Barrel Steel
$16.99 $9.99
Recoil Technologies AR-15 5.56/.223/.300/.350 Complete Bolt Carrier Group
Recoil Technologies AR-15 5.56/.223/.300/.350 Complete Bolt Carrier Group
$99.99 $71.99

New Releases

Polymer80 PF940CV1 Compact Blank - Black-Pre Order
Polymer80 PF940CV1 Compact Blank - Black-Pre Order
$149.99 $99.99
Polymer80 PF940V2 Full Size Blank - Black PRE-Order ONLY
Polymer80 PF940V2 Full Size Blank - Black PRE-Order ONLY
$149.99 $99.99
Polymer80 PF940V2 Full Size 80% Blank - With Bridge Frame - Black - 3 Pack
Polymer80 PF940V2 Full Size 80% Blank - With Bridge Frame - Black - 3 Pack
$269.99 $179.99

Browse by Price

  • $0 - $24.99
  • $25 - $49.99
  • $50 - $99.99
  • $100 - $149.99
  • $150 - $199.99
  • $200 - $249.99+
  • .22 Mag AR-15 Upper Builds
  • .22-250 LR-308/AR-10 Upper Builds
  • .45 ACP AR-15 Upper Builds
  • 10MM AR-15 Upper Builds
  • 12.7x42 Upper Builds
  • 22LR AR-15 Upper Builds
  • 5.56 NATO AR-15 Upper Builds
  • .300 Blackout AR-15 Upper Builds
  • 9mm AR-15 Upper Builds
  • .223 Wylde AR-15 Upper Builds
  • 7.62x39 AR-15 Upper Builds
  • .458 SOCOM AR-15 Upper Builds
  • .450 Bushmaster AR-15 Upper Builds
  • 6.5 Grendel AR-15 Upper Builds
  • 6mm ARC AR-15 Upper Builds
  • .350 Legend AR-15 Upper Builds
  • .308 Winchester LR-308/AR-10 Upper Builds
  • 6.5 Creedmoor LR-308/AR-10 Upper Builds

Products [467]

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1 2 3 4 5 6 7 ...20 Next Page View All
Davidson Defense AR-15
Davidson Defense AR-15 "Shinnok" Assembled Pistol Upper Receiver 7.5" .223 Wylde 4150 CMV 1-7T Barrel 7" M-Lok Handguard
$424.99 $244.99 Sale
In Stock
Add To Cart
Davidson Defense
Davidson Defense "Manta Ray" AR-15 Upper Receiver 16" 5.56 NATO 4150 CMV 1-8T Barrel 15" KeyMod Handguard (Assembled or Unassembled)
$424.99 $274.99 Sale
In Stock
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OTD
OTD "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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Davidson Defense
Davidson Defense "Littleknot" AR-15 Upper Receiver 16" 5.56 NATO 4150 CMV 1-8T Barrel 12" M-Lok Handguard (Assembled or Unassembled)
$474.99 $284.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Gulfstream" AR-15 Pistol Upper Receiver 5.5" 9MM 4150 CMV QPQ Nitride 1-10T Heavy Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$434.99 $184.99 Sale
Out of Stock
Davidson Defense
Davidson Defense "Sunfish" AR-15 Pistol Upper Receiver 8.5" 9MM 4150 CMV QPQ Nitride 1-10T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$504.99 $189.99 Sale
In Stock
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DTT
DTT "Leatherback" 16.5" AR-15 5.56 Nitride Upper Build Kit
$519.99 $234.99 Sale
Waitlist to be notified - More coming soon!
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Davidson Defense
Davidson Defense "Scaup" 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 $239.99 Sale
Waitlist to be notified - More coming soon!
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Davidson Defense
Davidson Defense "Fuego" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 9" M-Lok Handguard (Assembled or Unassembled)
$474.99 $229.99 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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Davidson Defense
Davidson Defense "Lykoi" AR-15 Pistol Upper Receiver 4" 9MM 4150 CMV QPQ Nitride 1-10T KAK Industries Barrel 4" M-Lok Handguard (Assembled or Unassembled)
$459.99 $184.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Sandstorm" AR-15 Pistol Upper Receiver 7.5" .223 Wylde Phosphate 1-7 T Barrel 7" Premium M-Lok Handguard (Assembled or Unassembled)
$484.99 $264.99 Sale
In Stock
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OTD
OTD "Jet Star" 8" AR-15 9mm Nitride Pistol Upper Build W/: KAK Industry
$489.99 $174.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Bulletstorm" AR-15 Upper Receiver 16" .350 Legend 4150 CMV QPQ Nitride 1-16T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$514.99 $249.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Deus Ex" AR-15 Upper Receiver 16" .350 Legend 4150 CMV QPQ Nitride 1-16T Barrel 12" M-Lok Handguard (Assembled or Unassembled)
$514.99 $244.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Fluorite" 4" AR-15 9MM Nitride Pistol Upper Build Kit
$454.99 $204.99 Sale
In Stock
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DTT Elite Series
DTT Elite Series "Newport" 8" AR-15 9MM Pistol Upper Build W/: KAK Industry and Guntec USA
$524.99 $209.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Amite" AR-15 Upper Receiver 16" 5.56 NATO 4150 CMV 1-8T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$529.99 $279.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Trove" AR-15 Pistol Upper Receiver 10.5" 5.56 NATO 4150 CMV 1-7T Barrel 9" M-Lok Handguard (Assembled or Unassembled)
$519.99 $264.99 Sale
Waitlist to be notified - More coming soon!
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Davidson Defense
Davidson Defense "Lucin" AR-15 Upper Receiver 16" 5.56 NATO 4150 CMV 1-8T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$524.99 $289.99 Sale
In Stock
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Davidson Defense
Davidson Defense "Alunite" AR-15 Upper Receiver 16" 5.56 NATO 4150 CMV 1-8T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$529.99 $279.99 Sale
In Stock
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OTD Customs
OTD Customs "Avagaum" AR-15 Pistol Upper Receiver 8.5" 5.56 NATO 4150 CMV 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$514.99 $254.99 Sale
Waitlist to be notified - More coming soon!
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Davidson Defense
Davidson Defense "Arenal" AR-15 Pistol Upper Receiver 5.25" 9MM 4150 CMV QPQ Nitride 1-10T Barrel 4" M-Lok Handguard (Assembled or Unassembled)
$519.99 $169.99 Sale
In Stock
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1 2 3 4 5 6 7 ...20 Next Page View All
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