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Shop By .450 Bushmaster


The .450 bushmaster is a do it all hunting round. You can hunt many different types of game with this round and also defend yourself against many predators out in the wilderness. It's also a blast to shoot at the range. This is a straight walled, center fire cartridge for those states that require that for hunting. Here at MMC Armory we offer a wide variety of parts for this caliber as well as complete build kits. Check out our MMC Combos to save money and to make your build or upgrade hassle free.

Top Sellers

Davidson Defense The Council 18-inch AR-15 .450 Bushmaster Rifle Upper Build Kit
Davidson Defense The Council 18-inch AR-15 .450 Bushmaster Rifle Upper Build Kit
$234.99 $174.99

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  • Barrels > .450 Bushmaster Compatible
  • Bolt Carrier Groups > .450 Bushmaster Compatible
  • Finish Your Build Kits > .450 Bushmaster Compatible
  • Magazines > .450 Bushmaster Compatible
  • Muzzle Devices > .450 Bushmaster Compatible
  • Upper Builds > .450 Bushmaster Compatible
  • Upper Build Starter Kits > .450 Bushmaster Compatible

Products [33]

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Davidson Defense
Davidson Defense "Buzz!" AR-15 Upper Receiver 18" .450 Bushmaster 4150 CMV 1-24T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$299.99 $229.99 Sale
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Davidson Defense
Davidson Defense "Andesite" AR-15 Upper Receiver 16" .450 Bushmaster 4150 CMV 1-16T Heavy Barrel 13" M-Lok Handguard (Assembled or Unassembled)
$304.99 $229.99 Sale
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Davidson Defense 'Behemoth' 16
Davidson Defense 'Behemoth' 16" AR-15 .450 Bushmaster Nitride Complete Rifle
$729.99 $549.99 Sale
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Davidson Defense Frostfang 18-inch AR-15 .450 Bushmaster Rifle Upper Build Kit
Davidson Defense Frostfang 18-inch AR-15 .450 Bushmaster Rifle Upper Build Kit
$229.99 $169.99 Sale
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Davidson Defense Frostfang 18-inch AR-15 .450 Bushmaster Rifle Complete Upper Build
Davidson Defense Frostfang 18-inch AR-15 .450 Bushmaster Rifle Complete Upper Build
$334.99 $249.99 Sale
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Davidson Defense Frostfang 18-inch AR-15 .450 Bushmaster Rifle Full Build Kit
Davidson Defense Frostfang 18-inch AR-15 .450 Bushmaster Rifle Full Build Kit
$404.99 $304.99 Sale
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Davidson Defense Glassbreaker 18-inch AR-15 .450 Bushmaster Rifle Upper Build Kit
Davidson Defense Glassbreaker 18-inch AR-15 .450 Bushmaster Rifle Upper Build Kit
$224.99 $169.99 Sale
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Davidson Defense Glassbreaker 18-inch AR-15 .450 Bushmaster Rifle Complete Upper Build
Davidson Defense Glassbreaker 18-inch AR-15 .450 Bushmaster Rifle Complete Upper Build
$329.99 $249.99 Sale
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 CMMG 'Heavy Hitters' Triple Mag Combo – .458 SOCOM
CMMG 'Heavy Hitters' Triple Mag Combo – .458 SOCOM
$109.99 $84.99 Sale
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 Big Boost Combo - .458 SOCOM Mag + BCG
Big Boost Combo - .458 SOCOM Mag + BCG
$159.99 $119.99 Sale
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Davidson Defense Inquisitorius 18-inch AR-15 .450 Bushmaster Rifle Upper Build Kit
Davidson Defense Inquisitorius 18-inch AR-15 .450 Bushmaster Rifle Upper Build Kit
$224.99 $169.99 Sale
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Davidson Defense Inquisitorius 18-inch AR-15 .450 Bushmaster Rifle Complete Upper Build
Davidson Defense Inquisitorius 18-inch AR-15 .450 Bushmaster Rifle Complete Upper Build
$369.99 $279.99 Sale
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Davidson Defense Inquisitorius 18-inch AR-15 .450 Bushmaster Rifle Full Build Kit
Davidson Defense Inquisitorius 18-inch AR-15 .450 Bushmaster Rifle Full Build Kit
$439.99 $329.99 Sale
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Davidson Defense The Council 18-inch AR-15 .450 Bushmaster Rifle Upper Build Kit
Davidson Defense The Council 18-inch AR-15 .450 Bushmaster Rifle Upper Build Kit
$234.99 $174.99 Sale
In Stock
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Davidson Defense The Council 18-inch AR-15 .450 Bushmaster Rifle Complete Upper Build
Davidson Defense The Council 18-inch AR-15 .450 Bushmaster Rifle Complete Upper Build
$379.99 $284.99 Sale
In Stock
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Davidson Defense The Council 18-inch AR-15 .450 Bushmaster Rifle Full Build Kit
Davidson Defense The Council 18-inch AR-15 .450 Bushmaster Rifle Full Build Kit
$449.99 $339.99 Sale
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Davidson Defense Rebellion 18-inch AR-15 .450 Bushmaster Rifle Upper Build Kit
Davidson Defense Rebellion 18-inch AR-15 .450 Bushmaster Rifle Upper Build Kit
$229.99 $174.99 Sale
In Stock
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Davidson Defense Rebellion 18-inch AR-15 .450 Bushmaster Rifle Complete Upper Build
Davidson Defense Rebellion 18-inch AR-15 .450 Bushmaster Rifle Complete Upper Build
$374.99 $279.99 Sale
In Stock
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Davidson Defense Rebellion 18-inch AR-15 .450 Bushmaster Rifle Full Build Kit
Davidson Defense Rebellion 18-inch AR-15 .450 Bushmaster Rifle Full Build Kit
$444.99 $334.99 Sale
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Bear Creek Arsenal .458 SOCOM / .450 Bushmaster Right-Side Charging BCG – Nitride
Bear Creek Arsenal .458 SOCOM / .450 Bushmaster Right-Side Charging BCG – Nitride
$112.99 $84.99 Sale
In Stock
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ELD Performance
ELD Performance "Fitter" Cryo Treated .450 Bushmaster 16" 4150 Cr Mo H-Bar 1:24 Twist Barrel
$229.99 $174.99 Sale
Out of Stock
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Recoil Technologies Premium AR-15 450 Bushmaster & 458 Socom Bolt Carrier Group BCG
Recoil Technologies Premium AR-15 450 Bushmaster & 458 Socom Bolt Carrier Group BCG
$195.00 $94.95 Sale
Out of Stock
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Gauntlet Arms
Gauntlet Arms "Sepal" 18" .450 Bushmaster 1-24T 4150 CMV Phosphate Steel HBAR
$94.99 $74.99 Sale
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Davidson Defense 450 Bushmaster and 458 Socom BCG
Davidson Defense 450 Bushmaster and 458 Socom BCG
$149.99 $109.99 Sale
In Stock
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