AR15 - 300 Blackout

AR15 - 300 Blackout

Upgrade your AR-15 with Always Armed .300 Blackout complete uppers and build kits. Designed for short-barrel performance and suppressed shooting, .300 Blackout (300 BLK) delivers .30-caliber power from compact platforms while using the same bolt, magazines, and lower as a standard 5.56 AR-15 — just swap the upper.

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  • Always Armed 10.5" 300 Blackout Upper Receiver - Black Milspec AR-15 10.5" Always Armed Upper with 1:8 Twist

    ALWAYS ARMED OCTO SERIES 10.5" 300 BLACKOUT FLASH CAN UPPER RECEIVER - BLACK ANODIZED

    Now: $189.00
    Was: $279.00
    ALWAYS ARMED OCTO SERIES 10.5" 300 BLACKOUT FLASH CAN UPPER RECEIVER - BLACK ANODIZED Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  10.5" 1:8 Twist 4150...
    Now: $189.00
    Was: $279.00
    Qty in Cart: 0
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    Now: $189.00
    Was: $279.00
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  • ALWAYS ARMED 6" .300 BLACKOUT FLASH CAN UPPER RECEIVER - FDE This is the best budget sbr upper. Short enough to fit in a backpack while staying effective

    ALWAYS ARMED 6" .300 BLACKOUT FLASH CAN UPPER RECEIVER - FDE

    Now: $229.00
    Was: $339.00
    ALWAYS ARMED 6" .300 BLACKOUT FLASH CAN UPPER RECEIVER - FDE Finished in FDE Cerakote Milspec 7075-T6 Upper Receiver 6" Black Nitride Barrel 1:7 Twist Rate 5/8x24 TPI Thread Pitch Chambered...
    Now: $229.00
    Was: $339.00
    Qty in Cart: 0
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    Now: $229.00
    Was: $339.00
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  • Always Armed 5" .300 Blackout Octo IHS Upper Receiver Always Armed 5" .300 Blackout Octo IHS Upper Receiver

    Always Armed 5" .300 Blackout Octo IHS Upper Receiver

    $219.00 - $239.00
    Always Armed 5" .300 Octo IHS Upper Receiver Chambered in .300 Blackout 4150 salt bath nitride barrel 5/8x24 TPI thread pitch 1:5 twist rate Micro length gas system Mil-Spec upper...
    $219.00 - $239.00
    Qty in Cart: 0
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    $219.00 - $239.00
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  • 16" 1:8 twist barrel ALWAYS ARMED OCTO SERIES 16" .300 BLACKOUT UPPER RECEIVER WITH 12" RAIL - BLACK

    ALWAYS ARMED OCTO SERIES 16" .300 BLACKOUT UPPER RECEIVER WITH 12" RAIL - BLACK

    Now: $199.00
    Was: $269.00
    ALWAYS ARMED OCTO SERIES 16" .300 BLACKOUT UPPER RECEIVER WITH 12" RAIL - BLACK Hard Coat Black Anodized Mil-Spec AR15 7075 T6 Upper Receiver with Dust Cover and Forward Assist  Pistol Length Gas...
    Now: $199.00
    Was: $269.00
    Qty in Cart: 0
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    Now: $199.00
    Was: $269.00
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  • ALWAYS ARMED 16" .300 BLACKOUT TR SERIES WITH TRINITY FORCE RIFLE KIT - BLACK

    ALWAYS ARMED 16" .300 BLACKOUT TR SERIES WITH TRINITY FORCE RIFLE KIT - BLACK

    Now: $359.00
    Was: $489.00
    ALWAYS ARMED 16" .300 BLACKOUT TR SERIES RIFLE KIT - BLACK Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  16" 1:8 Twist 4150 Barrel with Black Nitride...
    Now: $359.00
    Was: $489.00
    Qty in Cart: 0
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    Now: $359.00
    Was: $489.00
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  • ALWAYS ARMED 6" .300 BLACKOUT FLASH CAN UPPER RECEIVER - BLACK Shop this short upper for your next sbr build

    ALWAYS ARMED 6" .300 BLACKOUT FLASH CAN UPPER RECEIVER - BLACK

    Now: $209.00
    Was: $319.00
    ALWAYS ARMED 6" .300 BLACKOUT FLASH CAN UPPER RECEIVER - BLACK Hard Coat Black Anodized Finish Milspec 7075-T6 Upper Receiver 6" Black Nitride Barrel 1:7 Twist Rate 5/8x24 TPI Thread...
    Now: $209.00
    Was: $319.00
    Qty in Cart: 0
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    Now: $209.00
    Was: $319.00
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  • Out of stock
    ALWAYS ARMED 10.5" STAINLESS STEEL .300 BLACKOUT UPPER RECEIVER - TITANIUM ALWAYS ARMED 10.5" STAINLESS STEEL .300 BLACKOUT UPPER RECEIVER - TITANIUM

    ALWAYS ARMED 10.5" STAINLESS STEEL .300 BLACKOUT UPPER RECEIVER - TITANIUM

    Now: $209.00
    Was: $319.00
    ALWAYS ARMED 10.5" STAINLESS STEEL .300 BLACKOUT UPPER RECEIVER - TITANIUM Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  10.5" 1:8 Twist 416R Stainless Steel...
    Now: $209.00
    Was: $319.00
    Qty in Cart: 0
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    Now: $209.00
    Was: $319.00
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  • Always Armed 5-inch .300 Blackout Gen 1 IHS Upper Receiver featuring a 4.25-inch free-float handguard with integrated hand stop, Black Nitride barrel, and A2 flash hider.

    ALWAYS ARMED 5" .300 BLACKOUT GEN 1 IHS UPPER RECEIVER

    $199.00 - $219.00
    Build the ultimate ultra-compact PDW (Personal Defense Weapon) with the Always Armed 5" .300 Blackout Gen 1 IHS Upper Receiver. Designed for extreme maneuverability and maximum suppressor-ready...
    $199.00 - $219.00
    Qty in Cart: 0
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    $199.00 - $219.00
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  • ALWAYS ARMED 7.5" .300 BLACKOUT TR SERIES WITH TRINITY FORCE SIGHTS PISTOL KIT - FDE

    ALWAYS ARMED 7.5" .300 BLACKOUT TR SERIES WITH TRINITY FORCE SIGHTS PISTOL KIT - FDE

    Now: $359.00
    Was: $519.98
    Always Armed 7.5" .300 Blackout TR Series with Trinity Force Sights Pistol Kit - FDE Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  7.5" 1:8 Twist 4150...
    Now: $359.00
    Was: $519.98
    Qty in Cart: 0
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    Now: $359.00
    Was: $519.98
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  • ALWAYS ARMED JESTER 7.5" FLASH CAN UPPER RECEIVER 7.5" .300 BLACKOUT 1:8 TWIST BARREL

    ALWAYS ARMED JESTER 7.5" .300 BLACKOUT FLASH CAN UPPER RECEIVER - BLACK

    Now: $209.00
    Was: $309.00
    ALWAYS ARMED JESTER 7.5" .300 BLACKOUT FLASH CAN UPPER RECEIVER WITH 9" MLOK RAIL - BLACK Mil-Spec AR15 Upper Receiver with Dust Cover and Forward Assist 7.5" 1:8 Twist 4150 Barrel with Black...
    Now: $209.00
    Was: $309.00
    Qty in Cart: 0
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    Now: $209.00
    Was: $309.00
    Subtotal:
  • ALWAYS ARMED OCT2 SERIES 16" .300 BLACKOUT UPPER RECEIVER - BLACK Mil Spec AR15 Rifle Upper Receiver with M-LOK Free Float Rail

    ALWAYS ARMED OCT2 SERIES 16" .300 BLACKOUT UPPER RECEIVER - BLACK

    Now: $219.00
    Was: $269.00
    ALWAYS ARMED OCT2 SERIES 16" .300 BLACKOUT UPPER RECEIVER - BLACK Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  16" 1:8 Twist 4150 Barrel with Black Nitride...
    Now: $219.00
    Was: $269.00
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $219.00
    Was: $269.00
    Subtotal:
  • Always Armed 10.5" .300 Blackout Gen 1 Upper Receiver featuring a 10-inch free-float M-LOK handguard, Black Nitride finished barrel, low-profile gas block, and A2 flash hider.

    ALWAYS ARMED 10.5" .300 BLACKOUT GEN 1 UPPER RECEIVER

    $169.00 - $189.00
    Always Armed 10.5" .300 Blackout Gen 1 Upper Receiver Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  10.5" 1:8  Twist 4150 Barrel with Black Nitride...
    $169.00 - $189.00
    Qty in Cart: 0
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    $169.00 - $189.00
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  • Always Armed 10.5" .300 Blackout TR Series Upper Receiver in black finish, featuring a 10-inch M-LOK handguard, A2 flash hider, and low-profile gas block.

    ALWAYS ARMED 10.5" .300 BLACKOUT TR SERIES UPPER RECEIVER

    $169.00 - $189.00
    Always Armed 10.5" .300 Blackout TR Series Upper Receiver Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  10.5" 1:8  Twist 4150 Barrel with Black Nitride...
    $169.00 - $189.00
    Qty in Cart: 0
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    $169.00 - $189.00
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  • Always Armed 10.5-inch 7.62x39 TR Series Upper Receiver with 10-inch TR Series M-LOK handguard and Black Nitride finish.

    ALWAYS ARMED 10.5" 7.62x39 TR SERIES UPPER RECEIVER

    $169.00 - $189.00
    Always Armed 10.5" 7.62x39 TR Series Upper Receiver Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  10.5" 1:10  Twist 4150 Barrel with Black Nitride...
    $169.00 - $189.00
    Qty in Cart: 0
    Quantity:
    Price:
    $169.00 - $189.00
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  • Always Armed 7.5-inch .300 Blackout BR Series Upper Receiver featuring a 7-inch free-float M-LOK handguard, Black Nitride finished barrel, low-profile gas block, and A2 flash hider.

    ALWAYS ARMED 7.5" .300 BLACKOUT BR SERIES UPPER RECEIVER

    Now: $169.00
    Was: $289.00
    Always Armed 7.5" .300 Blackout BR Series Upper Receiver Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  7.5" 1:8  Twist 4150 Barrel with Black Nitride...
    Now: $169.00
    Was: $289.00
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $169.00
    Was: $289.00
    Subtotal:
  • Always Armed 7.5-inch .300 Blackout Gen 1 Upper Receiver featuring a 7-inch free-float M-LOK handguard, Black Nitride finished barrel, low-profile gas block, and A2 flash hider.

    ALWAYS ARMED 7.5" .300 BLACKOUT GEN 1 UPPER RECEIVER

    $169.00 - $189.00
    Always Armed 7.5" .300 Blackout Gen 1 Upper Receiver Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  7.5" 1:8  Twist 4150 Barrel with Black Nitride...
    $169.00 - $189.00
    Qty in Cart: 0
    Quantity:
    Price:
    $169.00 - $189.00
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  • Out of stock
    16" .300 Blackout Upper Receiver with 15" KeyMod Hand Guard 16" .300 Blackout Upper Receiver with 15" KeyMod Hand Guard

    16" .300 Blackout Upper Receiver with 15" KeyMod Hand Guard

    $299.00
    16" .300 Blackout Upper Receiver with 15" KeyMod Hand Guard  Made in the USA 16" 4150 Barrel Chambered in .300 Blackout 15" Free Floating Key Mod Hand Guard Black Anodized Finish Pistol Length Gas...
    $299.00
    Qty in Cart: 0
    Quantity:
    Price:
    $299.00
    Subtotal:
  • 7.5" .300 Blackout Flash Can Upper Receiver With 10" MLOK Hand Guard 7.5" .300 Blackout Flash Can Upper Receiver With 10" MLOK Hand Guard

    7.5" .300 Blackout Flash Can Upper Receiver With 10" MLOK Hand Guard

    $299.00
    7.5" .300 Blackout Flash Can Upper Receiver With 10" MLOK Hand Guard  Made in the USA Mil Spec 7075 T6 Upper Receiver 7.5" 4150 Steel Barrel with Black Nitride Finish Chambered in .300...
    $299.00
    Qty in Cart: 0
    Quantity:
    Price:
    $299.00
    Subtotal:
  • Out of stock
    Always Armed 10.5" .300 Blackout BR Series Pistol Kit components laid out neatly, featuring the black anodized upper receiver with a 9-inch BR M-LOK handguard, M16 bolt carrier group, lower parts kit, and pistol buffer tube assembly.

    ALWAYS ARMED 10.5" .300 BLACKOUT BR SERIES PISTOL KIT

    Now: $319.00
    Was: $509.00
    Always Armed 10.5" .300 Blackout BR Series Pistol Kit  Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  10.5" 1:8  Twist 4150 Barrel with Black Nitride...
    Now: $319.00
    Was: $509.00
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $319.00
    Was: $509.00
    Subtotal:
  • Out of stock
    Always Armed 10.5" .300 Blackout BR Series Upper Receiver featuring a 10-inch free-float M-LOK handguard, Black Nitride finished barrel, low-profile gas block, and A2 flash hider.

    ALWAYS ARMED 10.5" .300 BLACKOUT BR SERIES UPPER RECEIVER

    Now: $169.00
    Was: $279.00
    Always Armed 10.5" .300 Blackout BR Series Upper Receiver Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  10.5" 1:8  Twist 4150 Barrel with Black Nitride...
    Now: $169.00
    Was: $279.00
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $169.00
    Was: $279.00
    Subtotal:
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