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Pistol Upper Build Kits

Top Sellers

Davidson Defense
Davidson Defense "Pyrina" 7.5" AR-15 .300 Blackout Pistol Upper Build
$604.99 $199.99
Davidson Defense 'Eagle Eye' 8.3-inch AR-15 9mm Nitride Pistol Upper Build Kit
Davidson Defense 'Eagle Eye' 8.3-inch AR-15 9mm Nitride Pistol Upper Build Kit
$284.99 $159.99
Davidson Defense 'Lightshow 9mm-Black' 4-inch AR-15 9mm Nitride Pistol Upper Build Kit
Davidson Defense 'Lightshow 9mm-Black' 4-inch AR-15 9mm Nitride Pistol Upper Build Kit
$284.99 $159.99
Davidson Defense 'Compact Quad' 10.5
Davidson Defense 'Compact Quad' 10.5" AR-15 5.56 NATO Nitride Pistol Upper Build Kit
$374.99 $209.99
Davidson Defense 'Hot Scream' 10.5-inch AR-15 .300BLK Nitride Pistol Upper Build Kit
Davidson Defense 'Hot Scream' 10.5-inch AR-15 .300BLK Nitride Pistol Upper Build Kit
$349.99 $194.99
Davidson Defense 'MAV9' 11-inch AR-15 9mm Nitride Pistol Upper Build Kit
Davidson Defense 'MAV9' 11-inch AR-15 9mm Nitride Pistol Upper Build Kit
$214.99 $139.99
Davidson Defense 'Dusk Drifter' 10.5
Davidson Defense 'Dusk Drifter' 10.5" AR-15 .300BLK Nitride Pistol Upper Build Kit
$249.99 $199.99
Davidson Defense 'Barnum' 10.5
Davidson Defense 'Barnum' 10.5" AR-15 5.56 NATO Nitride Drop-In Pistol Upper Build Kit
$274.99 $219.99
Davidson Defense 'Enforcer' 8.5
Davidson Defense 'Enforcer' 8.5" AR-15 .300BLK Nitride Pistol Upper Build Kit
$244.99 $159.99
Davidson Defense 'Operators Delight' 8.5-inch AR-15 .300BLK Nitride Pistol Upper Build Kit
Davidson Defense 'Operators Delight' 8.5-inch AR-15 .300BLK Nitride Pistol Upper Build Kit
$239.99 $154.99
Davidson Defense 'Raptor Reaper' 8.5
Davidson Defense 'Raptor Reaper' 8.5" AR-15 .300BLK Nitride Pistol Upper Build Kit
$259.99 $169.99
Davidson Defense 'Breach' 4.5
Davidson Defense 'Breach' 4.5" AR-15 9mm Nitride Pistol Upper Build Kit
$169.99 $129.99
Davidson Defense 'Scorpion Stinger' 8.5
Davidson Defense 'Scorpion Stinger' 8.5"-inch AR-15 .300BLK Parkerized Pistol Upper Build Kit
$209.99 $154.99
Davidson Defense 'Ten-Five' 10.5
Davidson Defense 'Ten-Five' 10.5"-inch AR-15 5.56 NATO QPQ Pistol Upper Build Kit
$219.99 $164.99
Davidson Defense 'Vali in 300 Blackout' 7.5-inch AR-15 .300BLK Nitride Pistol Upper Build Kit
Davidson Defense 'Vali in 300 Blackout' 7.5-inch AR-15 .300BLK Nitride Pistol Upper Build Kit
$329.99 $184.99

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  • 10MM > Pistol Length > AR-15 Upper Build Kits

Products [141]

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MMC Arms Elite Series
MMC Arms Elite Series "Thumper" AR-15 Pistol Featuring Aero Precision Upper Receiver 10.5" .450 Bushmaster 1-24T 4150 CMV Heavy Barrel Premium 10" KeyMod Handguard (Assembled or Unassembled)
$504.99 $284.99 Sale
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MMC Arms
MMC Arms "Mini Sledge" AR-15 Featuring Aero Precision Upper Receiver 10.5" .450 Bushmaster 1-24T 4150 CMV Heavy Barrel 10" KeyMod Handguard (Assembled or Unassembled)
$549.99 $284.99 Sale
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MMC Arms
MMC Arms "Canis Minor" AR-15 Pistol Featuring Aero Precision Upper Receiver 10.5" 7.62x39 1-10T 4150 CMV Barrel 12" M-Lok Handguard (Assembled or Unassembled)
$479.99 $264.99 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)
$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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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
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MMC Arms
MMC Arms "Canis Minor" AR-15 Pistol Featuring Davidson Defense Upper Receiver 10.5" 7.62x39 1-10T 4150 CMV Barrel 12" M-Lok Handguard (Assembled or Unassembled)
$479.99 $264.99 Sale
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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
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Davidson Defense
Davidson Defense "Crake" AR-15 Pistol Upper Receiver 4.5" .45 ACP 4150 CMV QPQ Nitride 1-16T Barrel 4" M-Lok Handguard (Assembled or Unassembled)
$454.99 $214.99 Sale
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Davidson Defense
Davidson Defense "Brant" AR-15 Pistol Upper Receiver 8" .45 ACP 4150 CMV QPQ Nitride Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$489.99 $239.99 Sale
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Davidson Defense
Davidson Defense "Antpitta" AR-15 Pistol Upper Receiver 4.5" .45 ACP 4150 CMV 1-16T Barrel 4" M-Lok Handguard (Assembled or Unassembled)
$464.99 $199.99 Sale
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Davidson Defense 'Ivy' 7.5
Davidson Defense 'Ivy' 7.5" AR-15 .300 Blackout Manganese Phosphate Pistol Upper Build Kit
$569.99 $254.99 Sale
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Davidson Defense
Davidson Defense "Fregata" AR-15 Pistol Upper Receiver 10.5" 5.56 NATO 4150 CMV 1-7T Barrel 12" M-Lok Handguard (Assembled or Unassembled)
$534.99 $264.99 Sale
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Davidson Defense
Davidson Defense "Giga Wing" AR-15 Pistol Upper Receiver 10.5" 5.56 NATO 4150 CMV 1-8T Barrel 12" M-Lok Handguard (Assembled or Unassembled)
$479.99 $224.99 Sale
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Davidson Defense
Davidson Defense "Regiment" AR-15 Pistol Upper Receiver 11.5" 5.56 NATO 4150 CMV 1-7T Barrel Carbine Length Drop-In Handguard (Assembled or Unassembled)
$454.99 $209.99 Sale
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Davidson Defense
Davidson Defense "Athena" AR-15 Pistol Upper Receiver 7.5" 7.62x39 4150 CMV 1-10T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$469.99 $249.99 Sale
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Davidson Defense
Davidson Defense "Wonder Boy" AR-15 Pistol Upper Receiver 10.5" 7.62x39 4150 CMV 1-10T Heavy Barrel 12" M-Lok Handguard (Assembled or Unassembled)
$474.99 $264.99 Sale
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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
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Davidson Defense
Davidson Defense "Beefeater" AR-15 Pistol Upper Receiver 10.5" 9MM 4150 CMV 1-10T Barrel 12" M-Lok Handguard (Assembled or Unassembled)
$474.99 $209.99 Sale
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MMC Arms
MMC Arms "Thesan" LR-308 Pistol Featuring Aero Precision M5 Upper 12.5" .308 WIN 4150 CMV QPQ Nitride 1-10T Barrel 12" KeyMod Handguard (Assembled or Unassembled)
$554.99 $309.99 Sale
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MMC Arms
MMC Arms "Prelude" AR-15 Davidson Defense Upper Receiver 10.5" 7.62x39 4150 CMV 1-10T Barrel Premium 12" M-Lok Handguard (Assembled or Unassembled)
$494.99 $264.99 Sale
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MMC Arms
MMC Arms "Wicket" LR-308 Davidson Defense Upper Receiver 12.5" .308 WIN 4150 CMV 1-10T Barrel Premium 12" M-Lok Handguard (Assembled or Unassembled)
$554.99 $284.99 Sale
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Davidson Defense
Davidson Defense "Tangram" AR-15 Pistol Upper Receiver 7.5" 7.62x39 4150 CMV 1-10T Heavy Barrel 7" Quad Rail Handguard (Assembled or Unassembled)
$489.99 $239.99 Sale
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Davidson Defense
Davidson Defense "Boracite" Side Charging AR-15 Pistol Upper Receiver 8.5" .300 Blackout 4150 CMV 1-8T Barrel 9" M-Lok Handguard (Assembled or Unassembled)
$509.99 $364.99 Sale
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