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.300 Blackout > AR-15 Upper Build Kits

Top Sellers

Preassembled Davidson Defense 'Warpick' 7.5-inch AR-15 .300BLK Phosphate Pistol Upper Build Kit
Preassembled Davidson Defense 'Warpick' 7.5-inch AR-15 .300BLK Phosphate Pistol Upper Build Kit
$214.99 $159.99
Davidson Defense Ormal 16-inch AR-15 .300 BLK Rifle Upper Build Kit
Davidson Defense Ormal 16-inch AR-15 .300 BLK Rifle Upper Build Kit
$239.99 $179.99
Davidson Defense Teleri (Suppressor Ready) 8.5-inch AR-15 .300 BLK Pistol Upper Build Kit
Davidson Defense Teleri (Suppressor Ready) 8.5-inch AR-15 .300 BLK Pistol Upper Build Kit
$194.99 $144.99
Davidson Defense Illuin 16-inch AR-15 .300 BLK Rifle Upper Build Kit
Davidson Defense Illuin 16-inch AR-15 .300 BLK Rifle Upper Build Kit
$224.99 $169.99
Davidson Defense Poker Ace 10.5-inch AR-15 .300 BLK Pistol Upper Build Kit
Davidson Defense Poker Ace 10.5-inch AR-15 .300 BLK Pistol Upper Build Kit
$239.99 $179.99
Davidson Defense Shadow Skirmisher 10.5-inch AR-15 .300 BLK Pistol Upper Build Kit
Davidson Defense Shadow Skirmisher 10.5-inch AR-15 .300 BLK Pistol Upper Build Kit
$234.99 $169.99
Davidson Defense Honorbound 10.5-inch AR-15 .300 BLK Pistol Upper Build Kit
Davidson Defense Honorbound 10.5-inch AR-15 .300 BLK Pistol Upper Build Kit
$229.99 $169.99

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

Products [40]

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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
Out of Stock
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Davidson Defense 'Pista' 7.5
Davidson Defense 'Pista' 7.5" AR-15 .300 Blackout Manganese Phosphate Pistol Upper Build Kit
$554.99 $239.99 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 'Vapor' 7.5
Davidson Defense 'Vapor' 7.5" AR-15 .300 Blackout Manganese Phosphate Pistol Upper Build Kit
$554.99 $239.99 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 '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 'Annapolis' 10.5
Davidson Defense 'Annapolis' 10.5" AR-15 .300 Blackout Manganese Phosphate Pistol Upper Build Kit
$229.99 $174.99 Sale
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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 'Imperata' 10.5
Davidson Defense 'Imperata' 10.5" AR-15 .300 Blackout Manganese Phosphate Pistol Upper Build Kit
$534.99 $219.99 Sale
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MMC 'Lightshow II - Grey .300 Blackout' 16-inch AR-15 .300BLK Nitride Rifle Upper Build Kit
MMC 'Lightshow II - Grey .300 Blackout' 16-inch AR-15 .300BLK Nitride Rifle Upper Build Kit
$294.99 $220.99 Sale
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Davidson Defense 'Ionic Charge' 16-inch AR-15 .300BLK Phosphate Rifle Upper Build Kit
Davidson Defense 'Ionic Charge' 16-inch AR-15 .300BLK Phosphate Rifle Upper Build Kit
$279.99 $209.99 Sale
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Davidson Defense 'Streamline in .300 Blackout' 16-inch AR-15 .300BLK Phosphate Rifle Upper Build Kit
Davidson Defense 'Streamline in .300 Blackout' 16-inch AR-15 .300BLK Phosphate Rifle Upper Build Kit
$269.99 $201.99 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
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Davidson Defense 'Left-Handed Streamline in .300 Blackout' 16-inch AR-15 .300BLK Phosphate Left-Handed Rifle Upper Build Kit
Davidson Defense 'Left-Handed Streamline in .300 Blackout' 16-inch AR-15 .300BLK Phosphate Left-Handed Rifle Upper Build Kit
$284.99 $210.99 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 'Silent Lightning' 7.5-inch AR-15 .300BLK Phosphate Pistol Upper Build Kit
Davidson Defense 'Silent Lightning' 7.5-inch AR-15 .300BLK Phosphate Pistol Upper Build Kit
$229.99 $169.99 Sale
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Davidson Defense 'Steel Wraith' 7.5-inch AR-15 .300BLK Phosphate Pistol Upper Build Kit
Davidson Defense 'Steel Wraith' 7.5-inch AR-15 .300BLK Phosphate Pistol Upper Build Kit
$234.99 $172.99 Sale
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