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Upper Builds by Caliber

Top Sellers

Davidson Defense
Davidson Defense "Ural" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$594.99 $279.99
MMC Customs 'Last Breath' 20
MMC Customs 'Last Breath' 20" LR-308 6.5 Creedmoor Nitride Rifle Full Build Kit
$744.99 $479.99
Davidson Defense 'Tsurugi 6MM ARC' 18-inch AR-15 6mm ARC Nitride Rifle Complete Upper Build Kit
Davidson Defense 'Tsurugi 6MM ARC' 18-inch AR-15 6mm ARC Nitride Rifle Complete Upper Build Kit
$549.99 $284.99
Davidson Defense 'Lightshow II - Black' 16-inch AR-15 5.56 NATO Manganese Phosphate Rifle Trigger Ready
Davidson Defense 'Lightshow II - Black' 16-inch AR-15 5.56 NATO Manganese Phosphate Rifle Trigger Ready
$559.99 $294.99
Davidson Defense 'Ultralite' 10.5-inch AR-15 .223 Nitride Pistol Upper Build Kit
Davidson Defense 'Ultralite' 10.5-inch AR-15 .223 Nitride Pistol Upper Build Kit
$439.99 $174.99
Davidson Defense 'Ammosaurus' 16.5
Davidson Defense 'Ammosaurus' 16.5" AR-15 5.56 NATO Nitride Rifle Full Build Kit
$599.99 $334.99
Davidson Defense 'Mini NAM' 10.5-inch AR-15 5.56 NATO Nitride Pistol Complete Upper Build Kit
Davidson Defense 'Mini NAM' 10.5-inch AR-15 5.56 NATO Nitride Pistol Complete Upper Build Kit
$559.99 $294.99
Davidson Defense 'Scythe 2' 18
Davidson Defense 'Scythe 2' 18" LR-308 .308 Win Nitride Rifle Full Build Kit
$669.99 $404.99
Davidson Defense 'Attitude Adjustment' 18
Davidson Defense 'Attitude Adjustment' 18" LR-308 .308 Win Nitride Rifle Complete Upper Build Kit
$674.99 $409.99
Davidson Defense 'Belluga Whale' 18-inch LR-308 .308 Win Manganese Phosphate Rifle 80% Build Kit
Davidson Defense 'Belluga Whale' 18-inch LR-308 .308 Win Manganese Phosphate Rifle 80% Build Kit
$679.99 $414.99
Davidson Defense 'Cosy Exeter' 16-inch AR-15 .300BLK Nitride Rifle Full Build Kit
Davidson Defense 'Cosy Exeter' 16-inch AR-15 .300BLK Nitride Rifle Full Build Kit
$574.99 $309.99
Davidson Defense 'Duke' 18-inch AR-15 .223 Nitride Rifle 80% Build Kit
Davidson Defense 'Duke' 18-inch AR-15 .223 Nitride Rifle 80% Build Kit
$559.99 $294.99
Davidson Defense 'Fox 3' 20
Davidson Defense 'Fox 3' 20" LR-308 6.5 Creedmoor Nitride Rifle Full Build Kit
$694.99 $429.99
Davidson Defense 'Hypervelocity' 20
Davidson Defense 'Hypervelocity' 20" LR-308 6.5 Creedmoor Nitride Rifle Upper Build Kit
$514.99 $249.99
Davidson Defense 'Immram' 20-inch LR-308 .308 Win Nitride Rifle Full Build Kit
Davidson Defense 'Immram' 20-inch LR-308 .308 Win Nitride Rifle Full Build Kit
$749.99 $484.99
Davidson Defense 'Sacrosanct .223 Wylde' 10.5-inch AR-15 .223 Wylde Nitride Pistol Full Build Kit
Davidson Defense 'Sacrosanct .223 Wylde' 10.5-inch AR-15 .223 Wylde Nitride Pistol Full Build Kit
$549.99 $284.99

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  • .223 Wylde AR-15 Upper Builds .223 Wylde AR-15 Upper Builds
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  • 6.5 Creedmoor LR-308/AR-10 Upper Builds 6.5 Creedmoor LR-308/AR-10 Upper Builds

Products [987]

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MMC Customs
MMC Customs"Halen" LR-308 Featuring Aero Precision M5 Upper 18" Ultra-Match 4150 CMV .308 WIN 1-10T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$569.99 $329.99 Sale
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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
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MMC Customs
MMC Customs"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
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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
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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
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Davidson Defense
Davidson Defense "Pygora" AR-15 Upper Receiver 16" .300 Blackout 4150 CMV H-BAR 1-8T Barrel 15" KeyMod Handguard (Assembled or Unassembled)
$469.99 $274.99 Sale
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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
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MMC Arms
MMC Arms "Solidus" LR-308 Featuring Aero Precision M5 Upper 24" Ultra-Match 6.5 Creedmoor Stainless 1-8T Straight Fluted Heavy Bull Barrel 19" M-Lok Handguard (Assembled or Unassembled)
$824.99 $499.99 Sale
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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
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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
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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
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Ace High Arms
Ace High Arms "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
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Davidson Defense
Davidson Defense "Scrooge" AR-15 Pistol Upper Receiver 8" 7.62x39 4150 CMV QPQ Nitride 1-10T Heavy Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$679.99 $344.99 Sale
Out of Stock
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Davidson Defense
Davidson Defense "Slaw" AR-15 Pistol Upper Receiver 8" 7.62x39 4150 CMV QPQ Nitride 1-10T Heavy Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$504.99 $269.99 Sale
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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
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Davidson Defense
Davidson Defense "Savana" AR-15 Upper Receiver 20" .350 Legend 4150 CMV 1-16T Heavy Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$604.99 $444.99 Sale
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Davidson Defense
Davidson Defense "Disaster" AR-15 Pistol Upper Receiver 8.5" .300 Blackout 4150 CMV QPQ Nitride 1-8T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$574.99 $424.99 Sale
Out of 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
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Davidson Defense
Davidson Defense "Sounder" AR-15 Pistol Upper Receiver 8" 9MM 4150 CMV QPQ Nitride 1-10T KAK Industries Barrel 7" KeyMod Handguard (Assembled or Unassembled)
$454.99 $224.99 Sale
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MMC Arms
MMC Arms "Clack Clack" AR-15 Featuring Aero Precision Upper Receiver 16" .458 SOCOM 4150 CMV 1-14T Heavy Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$569.99 $319.99 Sale
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MMC Arms
MMC Arms "Ladon" LR-308 Featuring Aero Precision M5 Upper 18" 6.5 Creedmoor 416R Stainless 1-8T Straight Fluted Heavy Barrel 16" M-Lok Handguard (Assembled or Unassembled)
$569.99 $334.99 Sale
Out of Stock
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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
Out of Stock
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MMC Arms
MMC Arms "Bunting" LR-308 Featuring Aero Precision M5 Upper 18" 6.5 Creedmoor 416R Stainless 1-8T Straight Fluted Heavy Barrel 16" M-Lok Handguard (Assembled or Unassembled)
$569.99 $329.99 Sale
Out of Stock
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