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Rifle Upper Build Kits

Top Sellers

Davidson Defense 'Prydwen' 16
Davidson Defense 'Prydwen' 16" AR-15 .458 SOCOM Nitride Rifle Upper Build Kit
$279.99 $189.99
Davidson Defense 'Tsurugi 6MM ARC' 18-inch AR-15 6mm ARC Nitride Rifle Upper Build Kit
Davidson Defense 'Tsurugi 6MM ARC' 18-inch AR-15 6mm ARC Nitride Rifle Upper Build Kit
$274.99 $184.99
Davidson Defense 'Buzzworthy' 20
Davidson Defense 'Buzzworthy' 20" AR-15 5.56 NATO Phosphate Rifle Upper Build Kit
$259.99 $174.99
Davidson Defense 'Hollow Words' 16
Davidson Defense 'Hollow Words' 16" AR-15 .223 Wylde Nitride Rifle Upper Build Kit
$294.99 $189.99
MMC 'Conway' 16.5
MMC 'Conway' 16.5" AR-15 9MM NIT Upper Build Kit
$274.99 $209.99
Davidson Defense 'Frogger V223' 16-inch AR-15 .223 Wylde Phosphate Rifle Upper Build Kit
Davidson Defense 'Frogger V223' 16-inch AR-15 .223 Wylde Phosphate Rifle Upper Build Kit
$194.99 $149.99
Davidson Defense 'New Manchester' 16
Davidson Defense 'New Manchester' 16" AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$259.99 $199.99
Davidson Defense 'The Aristocrat' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
Davidson Defense 'The Aristocrat' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$269.99 $184.99
MMC 'Fennek Evolved' 16
MMC 'Fennek Evolved' 16" AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$274.99 $209.99

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Products [226]

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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"Anemone" AR-15 Upper Receiver 20" Ultra-Match 6.5 Grendel 4150 CMV H-BAR 1-8T Barrel 17" M-Lok Handguard (Assembled or Unassembled)
$444.99 $259.99 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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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 "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 "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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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
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Davidson Defense
Davidson Defense "Jogah" AR-15 Upper Receiver 16" .223 Wylde 4150 CMV 1-8T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$474.99 $269.99 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)
$569.99 $329.99 Sale
Out of Stock
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Davidson Defense
Davidson Defense "Craze" AR-15 Upper Receiver 16" 7.62x39 4150 CMV 1-10T Heavy Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$479.99 $274.99 Sale
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Davidson Defense
Davidson Defense "Hardhead" AR-15 Upper Receiver 20" .350 Legend 4150 CMV 1-16T Heavy Barrel 16.5" KeyMod Handguard (Assembled or Unassembled)
$509.99 $254.99 Sale
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MMC Arms Top Shelf
MMC Arms Top Shelf "Lynx" AR-15 Featuring Davidson Defense Upper Receiver 18" Faxon Firearms 5.56 NATO 4150 CMV QPQ Nitride 1-8T Barrel 17.5" KeyMod ODIN Works Handguard (Assembled or Unassembled)
$624.99 $379.99 Sale
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Davidson Defense
Davidson Defense "Puff" AR-15 Upper Receiver 16" .223 Wylde 4150 CMV 1-9T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$489.99 $234.99 Sale
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Davidson Defense
Davidson Defense "Arini" AR-15 Upper Receiver 20" .350 Legend 4150 CMV 1-16T Heavy Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$519.99 $264.99 Sale
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Davidson Defense
Davidson Defense "Moroder" AR-15 Upper Receiver 20" 6.5 Grendel 416R Stainless 1-8T Heavy Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$519.99 $259.99 Sale
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Davidson Defense
Davidson Defense "Untouchable" AR-15 Upper Receiver 18" .350 Legend 4150 CMV 1-16T Heavy Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$499.99 $289.99 Sale
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Davidson Defense 'Mercs' 16
Davidson Defense 'Mercs' 16" AR-15 .300 Blackout Manganese Phosphate Upper Build Kit
$539.99 $224.99 Sale
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Davidson Defense
Davidson Defense "Blade Eagle" AR-15 Upper Receiver 24" 5.56 NATO 416R Stainless 1-9T Target Crowned Bull Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$484.99 $234.99 Sale
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MMC Arms
MMC Arms "Sesto" LR-308 Featuring A Davidson Defense DPMS Style Upper Receiver 22" 6.5 Creedmoor 4150 CMV QPQ Nitride Straight Fluted Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$589.99 $314.99 Sale
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