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Pistol Length > .300 Blackout > AR-15 Upper Build Kit

Top Sellers

Davidson Defense
Davidson Defense "Idared" AR-15 Pistol Upper Receiver 10.5" .300 Blackout 4150 CMV 1-8T Heavy Barrel 10" M-Lok Handguard (Assembled or Unassembled)
$254.99 $159.99
Davidson Defense 'Boston' 10.5
Davidson Defense 'Boston' 10.5" AR-15 .300 Blackout Manganese Phosphate Pistol Upper Build Kit
$264.99 $148.49
Davidson Defense 'Meteoric Ore' 7.5-inch AR-15 .300BLK Phosphate Pistol Upper Build Kit
Davidson Defense 'Meteoric Ore' 7.5-inch AR-15 .300BLK Phosphate Pistol Upper Build Kit
$214.99 $157.99
Davidson Defense Helljumper 7.5-inch AR-15 .300 BLK Pistol Upper Build Kit
Davidson Defense Helljumper 7.5-inch AR-15 .300 BLK Pistol Upper Build Kit
$214.99 $157.99

Manufacturer

  1. Home
  2. AR-15 & AR-10 Build Kits
  3. Upper Build Kits
  4. Shop by Caliber > AR-15 & LR-308/AR-10 Upper Build Kits
  5. .300 Blackout > AR-15 Upper Build Kits
  6. Pistol Length > .300 Blackout > AR-15 Upper Build Kit
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Products [29]

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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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Davidson Defense 'Grimace' 7.5
Davidson Defense 'Grimace' 7.5" AR-15 .300 Blackout Manganese Phosphate Pistol Upper Build Kit
$559.99 $244.99 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 "Raptor Claw" AR-15 Pistol Upper Receiver 7.5" .300 Blackout 4150 CMV 1-8T Heavy Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$469.99 $254.99 Sale
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Davidson Defense 'QST' 7.5
Davidson Defense 'QST' 7.5" AR-15 .300 Blackout Manganese Phosphate Pistol Upper Build Kit
$549.99 $234.99 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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Davidson Defense
Davidson Defense "Idared" AR-15 Pistol Upper Receiver 10.5" .300 Blackout 4150 CMV 1-8T Heavy Barrel 10" M-Lok Handguard (Assembled or Unassembled)
$254.99 $159.99 Sale
In Stock
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Davidson Defense 'Annapolis' 10.5
Davidson Defense 'Annapolis' 10.5" AR-15 .300 Blackout Manganese Phosphate Pistol Upper Build Kit
$529.99 $214.99 Sale
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Davidson Defense 'Boston' 10.5
Davidson Defense 'Boston' 10.5" AR-15 .300 Blackout Manganese Phosphate Pistol Upper Build Kit
$264.99 $148.49 Sale
In Stock
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Davidson Defense 'Flopzoom' 7.5
Davidson Defense 'Flopzoom' 7.5" AR-15 .300 Blackout Manganese Phosphate Pistol Upper Build Kit
$554.99 $239.99 Sale
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Davidson Defense 'Innes' 8.5
Davidson Defense 'Innes' 8.5" AR-15 .300BLK Nitride Pistol Upper Build Kit
$254.99 $190.99 Sale
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Davidson Defense 'Enforcer' 8.5
Davidson Defense 'Enforcer' 8.5" AR-15 .300BLK Nitride Pistol Upper Build Kit
$259.99 $194.99 Sale
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Davidson Defense 'Shadow Stalker' 8.5
Davidson Defense 'Shadow Stalker' 8.5" AR-15 .300BLK Nitride Pistol Upper Build Kit
$284.99 $212.99 Sale
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Davidson Defense 'Spartan Mod 1' 8.5-inch AR-15 .300BLK Nitride Pistol Upper Build Kit
Davidson Defense 'Spartan Mod 1' 8.5-inch AR-15 .300BLK Nitride Pistol Upper Build Kit
$249.99 $184.99 Sale
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Davidson Defense 'Bluetooth Hole Puncher' 8.5-inch AR-15 .300BLK Nitride Pistol Upper Build Kit
Davidson Defense 'Bluetooth Hole Puncher' 8.5-inch AR-15 .300BLK Nitride Pistol Upper Build Kit
$254.99 $189.99 Sale
Out of Stock
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Davidson Defense 'Left Handed Quadrail Pistol in .300 Blackout' 8.5-inch AR-15 .300BLK Nitride Left-Handed Pistol Upper Build Kit
Davidson Defense 'Left Handed Quadrail Pistol in .300 Blackout' 8.5-inch AR-15 .300BLK Nitride Left-Handed Pistol Upper Build Kit
$249.99 $185.99 Sale
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MMC 'Humboldt Pistol Mod 3' 8.5-inch AR-15 .300BLK Nitride Pistol Upper Build Kit
MMC 'Humboldt Pistol Mod 3' 8.5-inch AR-15 .300BLK Nitride Pistol Upper Build Kit
$344.99 $256.99 Sale
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Davidson Defense 'Golden Order-Side Charging' 8.5-inch AR-15 .300BLK Parkerized Side-Charging Pistol Upper Build Kit
Davidson Defense 'Golden Order-Side Charging' 8.5-inch AR-15 .300BLK Parkerized Side-Charging Pistol Upper Build Kit
$234.99 $173.99 Sale
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Davidson Defense 'Warpick' 7.5-inch AR-15 .300BLK Phosphate Pistol Upper Build Kit
Davidson Defense 'Warpick' 7.5-inch AR-15 .300BLK Phosphate Pistol Upper Build Kit
$234.99 $174.99 Sale
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Davidson Defense 'Meteoric Ore' 7.5-inch AR-15 .300BLK Phosphate Pistol Upper Build Kit
Davidson Defense 'Meteoric Ore' 7.5-inch AR-15 .300BLK Phosphate Pistol Upper Build Kit
$214.99 $157.99 Sale
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Davidson Defense 'Beast Claw' 7.5-inch AR-15 .300BLK Phosphate Pistol Upper Build Kit
Davidson Defense 'Beast Claw' 7.5-inch AR-15 .300BLK Phosphate Pistol Upper Build Kit
$239.99 $176.99 Sale
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Davidson Defense 'Serpent Hunter' 7.5-inch AR-15 .300BLK Phosphate Pistol Upper Build Kit
Davidson Defense 'Serpent Hunter' 7.5-inch AR-15 .300BLK Phosphate Pistol Upper Build Kit
$224.99 $166.99 Sale
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Davidson Defense 'Key Lock .300 Blackout' 7.5-inch AR-15 .300BLK Phosphate Pistol Upper Build Kit
Davidson Defense 'Key Lock .300 Blackout' 7.5-inch AR-15 .300BLK Phosphate Pistol Upper Build Kit
$194.99 $145.99 Sale
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Davidson Defense 'Eternal Witness' 10.5-inch AR-15 .300BLK Phosphate Pistol Upper Build Kit
Davidson Defense 'Eternal Witness' 10.5-inch AR-15 .300BLK Phosphate Pistol Upper Build Kit
$229.99 $169.99 Sale
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