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Upper Builds by Caliber

Top Sellers

Omega Mfg. Rear Beavertail grip, Rubberized Coating
Omega Mfg. Rear Beavertail grip, Rubberized Coating
$4.99
Davidson Defense 'XV556' 16.5-inch AR-15 5.56 NATO Nitride Rifle Full Build Kit
Davidson Defense 'XV556' 16.5-inch AR-15 5.56 NATO Nitride Rifle Full Build Kit
$379.99 $284.99
Davidson Defense 'Rising Pheonix in .223' 7.5-inch AR-15 Nitride Pistol Full Build Kit
Davidson Defense 'Rising Pheonix in .223' 7.5-inch AR-15 Nitride Pistol Full Build Kit
$334.99 $254.99
Davidson Defense 'Hot Hand Mid-Length' MMC Exclusive 16.5-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit (Handguard Ready)
Davidson Defense 'Hot Hand Mid-Length' MMC Exclusive 16.5-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit (Handguard Ready)
$179.99 $134.99
Davidson Defense Buck Wylde 16-inch AR-15 .223 Wylde Rifle Full Build Kit
Davidson Defense Buck Wylde 16-inch AR-15 .223 Wylde Rifle Full Build Kit
$354.99 $269.99
Davidson Defense Spearfisher's Revenge w/Gauntlet Arms Brace 6-inch AR-15 .300 BLK Pistol Full Build Kit
Davidson Defense Spearfisher's Revenge w/Gauntlet Arms Brace 6-inch AR-15 .300 BLK Pistol Full Build Kit
$374.99 $284.99
Davidson Defense 'Honest Work' 10.5-inch AR-15 5.56 NATO Nitride Pistol Complete Upper Build
Davidson Defense 'Honest Work' 10.5-inch AR-15 5.56 NATO Nitride Pistol Complete Upper Build
$269.99 $199.99
Davidson Defense Freedom Saber 16-inch AR-15 5.56 NATO Rifle Full Build Kit
Davidson Defense Freedom Saber 16-inch AR-15 5.56 NATO Rifle Full Build Kit
$364.99 $274.99
Davidson Defense Wallbreaker 16-inch AR-15 5.56 NATO Rifle Full Build Kit
Davidson Defense Wallbreaker 16-inch AR-15 5.56 NATO Rifle Full Build Kit
$359.99 $269.99
Davidson Defense 'Vigilance Wing 9MM' 11-inch AR-15 9mm Nitride Pistol Upper Build Kit
Davidson Defense 'Vigilance Wing 9MM' 11-inch AR-15 9mm Nitride Pistol Upper Build Kit
$179.99 $134.99
Davidson Defense 'Choir of One 7.62' 16-inch AR-15 7.62x39 Nitride Rifle Full Build Kit
Davidson Defense 'Choir of One 7.62' 16-inch AR-15 7.62x39 Nitride Rifle Full Build Kit
$374.99 $284.99
Davidson Defense Tough Guy 10.5-inch Carbine-Gas 5.56 NATO AR-15 Rifle Assembled Upper Receiver
Davidson Defense Tough Guy 10.5-inch Carbine-Gas 5.56 NATO AR-15 Rifle Assembled Upper Receiver
$159.99 $119.99
Davidson Defense 'Fire Derby' 10.5
Davidson Defense 'Fire Derby' 10.5" AR-15 5.56 NATO Phosphate Pistol Upper Build Kit
$209.99 $159.99
Davidson Defense Shadowmere 16-inch AR-15 .223 Wylde Rifle Full Build Kit
Davidson Defense Shadowmere 16-inch AR-15 .223 Wylde Rifle Full Build Kit
$379.99 $284.99
Davidson Defense 'Capture w/Gauntlet Arms Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Drop in Trigger Ready Full Build Kit
Davidson Defense 'Capture w/Gauntlet Arms Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Drop in Trigger Ready Full Build Kit
$329.99 $249.99
Davidson Defense Teleri w/Gauntlet Arms Brace (Suppressor Ready) 8.5-inch AR-15 .300 BLK Pistol Full Build Kit
Davidson Defense Teleri w/Gauntlet Arms Brace (Suppressor Ready) 8.5-inch AR-15 .300 BLK Pistol Full Build Kit
$334.99 $254.99

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  • 5.56 NATO AR-15 Upper Builds 5.56 NATO AR-15 Upper Builds
  • .300 Blackout AR-15 Upper Builds .300 Blackout AR-15 Upper Builds
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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

NEW RELEASES

Davidson Defense Galaxy's Edge 22-inch LR-308 6.5 Creedmoor Rifle Full Build Kit
Davidson Defense Galaxy's Edge 22-inch LR-308 6.5 Creedmoor Rifle Full Build Kit
$664.99 $499.99 Sale
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Products [1176]

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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)
$194.99 $144.99 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)
$334.99 $249.99 Sale
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Omega Mfg. Rear Beavertail grip, Rubberized Coating
Omega Mfg. Rear Beavertail grip, Rubberized Coating
$4.99
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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)
$394.99 $299.99 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)
$284.99 $214.99 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)
$469.99 $354.99 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)
$699.99 $529.99 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)
$349.99 $264.99 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)
$524.99 $394.99 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)
$354.99 $264.99 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)
$404.99 $304.99 Sale
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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)
$324.99 $244.99 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)
$324.99 $244.99 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)
$474.99 $354.99 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)
$399.99 $299.99 Sale
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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)
$354.99 $269.99 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)
$164.99 $124.99 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)
$434.99 $324.99 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)
$469.99 $349.99 Sale
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Davidson Defense 'Anthea' 7.5
Davidson Defense 'Anthea' 7.5" AR-15 .300 Blackout Manganese Phosphate Pistol Upper Build Kit
$194.99 $149.99 Sale
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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)
$469.99 $354.99 Sale
Out of Stock
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Davidson Defense
Davidson Defense "Truffle Shuffle" AR-15 Upper Receiver 16" 9MM 4150 CMV QPQ Nitride 1-10T Barrel 12" M-Lok Handguard (Assembled or Unassembled)
$429.99 $324.99 Sale
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MMC Arms Top Shelf
MMC Arms Top Shelf "Cobelodus" AR-15 Featuring Davidson Defense Upper Receiver 16" XX-Treme Barrel Company .350 Legend 4150 CMV 1-16T Barrel 12" Smooth Tube Unique AR Handguard (Assembled or Unassembled)
$434.99 $329.99 Sale
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MMC Arms
MMC Arms "Rat-Tat-Tat" AR-15 Pistol Featuring Davidson Defense Upper Receiver 7.5" 5.56 NATO 416R Stainless 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$294.99 $224.99 Sale
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