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Rifle Upper Build Kits

Top Sellers

MMC 'Classic V1' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
MMC 'Classic V1' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$464.99 $199.99
Davidson Defense 'Freccia' 17
Davidson Defense 'Freccia' 17" AR-15 .223 Wylde SS Upper Build Kit
$499.99 $234.99
Davidson Defense 'Challenge' 16
Davidson Defense 'Challenge' 16" AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$449.99 $184.99
Davidson Defense 'Reconnaissance' 16-inch AR-15 6.5 Grendel Nitride Rifle Upper Build Kit
Davidson Defense 'Reconnaissance' 16-inch AR-15 6.5 Grendel Nitride Rifle Upper Build Kit
$464.99 $199.99
Davidson Defense 'Troels' 24
Davidson Defense 'Troels' 24" LR-308 6.5 Creedmoor Stainless Rifle Upper Build Kit
$594.99 $329.99
MMC 'Braskaland' 18-inch AR-15 6mm ARC Bead Blasted Rifle Upper Build Kit
MMC 'Braskaland' 18-inch AR-15 6mm ARC Bead Blasted Rifle Upper Build Kit
$569.99 $304.99

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  4. Rifle Upper Build Kits

Products [336]

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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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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 "Legend" AR-15 Upper Receiver 16" Ultra-Match 350 Legend 4150 CMV 1-16T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$489.99 $299.99 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 "Venom Spider" LR-308 Featuring Aero Precision M5 Upper 16" Ultra-Match .308 WIN 4150 CMV 1-10T Heavy Barrel 12" Smooth Tube Handguard (Assembled or Unassembled)
$619.99 $334.99 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 "Tempt" AR-15 Upper Receiver 16" .223 Wylde 4150 CMV 1-9T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$469.99 $239.99 Sale
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Davidson Defense
Davidson Defense "Sallet" AR-15 Upper Receiver 16" .223 Wylde 4150 CMV 1-9T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$454.99 $234.99 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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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
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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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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 "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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