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.300 Blackout > AR-15 Upper Build Kits

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

Products [13]

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Davidson Defense 'Anthea' 7.5
Davidson Defense 'Anthea' 7.5" AR-15 .300 Blackout Manganese Phosphate Pistol Upper Build Kit
$204.99 $154.99 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
$229.99 $169.99 Sale
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Davidson Defense 'Mercs' 16
Davidson Defense 'Mercs' 16" AR-15 .300 Blackout Manganese Phosphate Upper Build Kit
$234.99 $179.99 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)
$439.99 $329.99 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
$249.99 $189.99 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
$214.99 $164.99 Sale
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Davidson Defense Aegis 6-inch Pistol-Gas 1:7 .300 BLK AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit
Davidson Defense Aegis 6-inch Pistol-Gas 1:7 .300 BLK AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit
$199.99 $154.99 Sale
In Stock
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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
$204.99 $154.99 Sale
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Davidson Defense Aegis 8.5-inch Pistol-Gas 1:8 .300 BLK AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit
Davidson Defense Aegis 8.5-inch Pistol-Gas 1:8 .300 BLK AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit
$179.99 $134.99 Sale
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Davidson Defense Aegis 8.5-inch Pistol-Gas 1:8 .300 BLK AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit, Suppressor Ready
Davidson Defense Aegis 8.5-inch Pistol-Gas 1:8 .300 BLK AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit, Suppressor Ready
$169.99 $129.99 Sale
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Davidson Defense Aegis 8.5-inch Pistol-Gas 1:9 .300 BLK AR-15 M-LOK Handguard Pistol Upper Build Kit, KAK Industry Plan B A7 Flash Hider
Davidson Defense Aegis 8.5-inch Pistol-Gas 1:9 .300 BLK AR-15 M-LOK Handguard Pistol Upper Build Kit, KAK Industry Plan B A7 Flash Hider
$269.99 $204.99 Sale
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Davidson Defense Aegis Lightweight 10.5-inch Pistol-Gas 1:8 .300 BLK AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit
Davidson Defense Aegis Lightweight 10.5-inch Pistol-Gas 1:8 .300 BLK AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit
$194.99 $144.99 Sale
In Stock
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Davidson Defense Aegis Lightweight 8.5-inch Pistol-Gas 1:9 .300 BLK AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit
Davidson Defense Aegis Lightweight 8.5-inch Pistol-Gas 1:9 .300 BLK AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit
$189.99 $144.99 Sale
In Stock
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