300 Blackout Uppers

300 Blackout Uppers

Enhance your AR-15 with premium 300 Blackout upper receivers from Always Armed. Designed for superior performance in rifle and pistol builds, our 300BLK uppers are ideal for subsonic and suppressed shooting. Choose from a variety of Cerakote finishes, barrel lengths, and configurations to match your tactical or custom build. Easy to install, reliable, and ready for the range or field.

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  • Always Armed 16 inch .300 Blackout BX Series complete upper receiver in Smith & Wesson Red Cerakote finish
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    ALWAYS ARMED 16" .300 BLACKOUT BX SERIES UPPER RECEIVER - SMITH & WESSON RED

    Now: $219.00
    Was: $319.00
    Upgrade your AR-15 build with the vibrant, eye-catching ALWAYS ARMED 16" .300 BLACKOUT BX SERIES UPPER RECEIVER - SMITH & WESSON RED. Made in the USA, this high-performance complete upper receiver...
    Now: $219.00
    Was: $319.00
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  • Always Armed 16" .300 Blackout TR Series Upper Receiver - Black Always Armed 16" .300 Blackout TR Series Upper Receiver - Black
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    Always Armed 16" .300 Blackout TR Series Upper Receiver - Black

    Now: $199.00
    Was: $299.00
    Always Armed 16" .300 Blackout TR Series Upper Receiver - Black Made in the USA 16" 4150 Barrel Chambered in .300 Blackout 1:8 Twist 15" TR Series Free Floating M-LOK Hand Guard Black Anodized...
    Now: $199.00
    Was: $299.00
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  • ALWAYS ARMED 16" .300 BLACKOUT UPPER RECEIVER WITH 15" M-LOK QUAD RAIL ALWAYS ARMED 16" .300 BLACKOUT UPPER RECEIVER WITH 15" M-LOK QUAD RAIL
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    ALWAYS ARMED 16" .300 BLACKOUT UPPER RECEIVER WITH 15" M-LOK QUAD RAIL

    Now: $219.00
    Was: $329.00
    ALWAYS ARMED 16" .300 BLACKOUT UPPER RECEIVER WITH 15" M-LOK QUAD RAIL Made in the USA 16" 4150 Barrel Chambered in .300 Blackout 15" Free Floating MLOK Quad Rail Black Anodized Finish Pistol Length...
    Now: $219.00
    Was: $329.00
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    Always Armed 16" .300 Blackout Upper Receiver with Stainless Steel Barrel, AXE Brake and 12" M-Lok Rail - Black Anodized
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    Always Armed 16" .300 Blackout Upper Receiver with Stainless Steel Barrel, AXE Brake and 12" M-Lok Rail - Black Anodized

    $349.00
    Always Armed 16" .300 Blackout Upper Receiver Black Anodized Finish Chambered in .300 Blackout 12" Aluminum M-LOK Hand Guard 16" 1:8 416R Stainless Steel Barrel Pistol Length Gas System Stainless...
    $349.00
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    $349.00
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  • ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - BAZOOKA GREEN ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - BAZOOKA GREEN
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    ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - BAZOOKA GREEN

    Now: $219.00
    Was: $319.00
    Always Armed 16" 300 Blackout Upper Receiver - Bazooka Green 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 Finish...
    Now: $219.00
    Was: $319.00
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  • ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - BLACK ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - BLACK
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    ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - BLACK

    Now: $199.00
    Was: $299.00
    Always Armed 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: $199.00
    Was: $299.00
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  • ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - BURNT BRONZE ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - BURNT BRONZE
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    ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - BURNT BRONZE

    Now: $219.00
    Was: $319.00
    Always Armed 16" 300 Blackout Upper Receiver - Burnt Bronze Made in the USA Mil-Spec 7075 T6 16" Upper Receiver with Dust Cover and Forward Assist  16" 1:8 Twist 4150 Barrel with Black Nitride...
    Now: $219.00
    Was: $319.00
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  • Always Armed 16 inch 300 Blackout Upper Receiver with Laser Engraving, Laser engraved dust cover and receiver detail on Always Armed 300 Blackout upper 15 inch M-LOK handguard on Always Armed 16 inch 300 Blackout upper receiver
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    ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - ENGRAVED

    $319.00
    Always Armed 16" .300 Blackout Upper Receiver – Engraved Upgrade your AR-15 platform with the custom styling and rugged performance of the Always Armed 16" .300 Blackout Upper Receiver...
    $319.00
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  • ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - SIG PINK ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - SIG PINK
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    ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - SIG PINK

    Now: $219.00
    Was: $319.00
    Always Armed 16" 300 Blackout Upper Receiver - Sig Pink 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 Finish...
    Now: $219.00
    Was: $319.00
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  • ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - SMITH & WESSON RED ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - SMITH & WESSON RED
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    ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - SMITH & WESSON RED

    Now: $219.00
    Was: $319.00
    Always Armed 16" 300 Blackout Upper Receiver - Smith & Wesson Red Made in the USA Mil-Spec 7075 T6 Blackout Upper Receiver with Dust Cover and Forward Assist  16" 1:8 Twist 4150 Barrel with Black...
    Now: $219.00
    Was: $319.00
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  • ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - TITANIUM ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - TITANIUM
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    ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - TITANIUM

    Now: $219.00
    Was: $319.00
    Always Armed 16" 300 Blackout Upper Receiver - Titanium 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 Finish...
    Now: $219.00
    Was: $319.00
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  • Compact FDE 5-inch .300 Blackout upper receiver featuring 4150 nitride barrel, integrated hand stop, and dust cover. Always Armed 5" .300 Blackout Gen 1 IHS Upper Receiver | USA Made
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    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
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  • Out of stock
    ALWAYS ARMED 6" .300 BLACKOUT UPPER RECEIVER - BLACK ANODIZED ALWAYS ARMED 6" .300 BLACKOUT UPPER RECEIVER - BLACK ANODIZED
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    ALWAYS ARMED 6" .300 BLACKOUT UPPER RECEIVER - BLACK ANODIZED

    Now: $189.00
    Was: $269.00
    ALWAYS ARMED 6" 300 BLACKOUT UPPER RECEIVER - BLACK ANODIZED Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  6" 1:7 Twist 4150 Barrel with Black Nitride...
    Now: $189.00
    Was: $269.00
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    Now: $189.00
    Was: $269.00
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  • Out of stock
    ALWAYS ARMED 7.5" .300 BLACKOUT STAINLESS STEEL UPPER RECEIVER - BLACK ALWAYS ARMED 7.5" .300 BLACKOUT STAINLESS STEEL UPPER RECEIVER - BLACK
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    ALWAYS ARMED 7.5" .300 BLACKOUT STAINLESS STEEL UPPER RECEIVER - BLACK

    Now: $189.00
    Was: $279.00
    ALWAYS ARMED 7.5" .300 BLACKOUT STAINLESS STEEL UPPER RECEIVER - BLACK Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  7.5" 1:8 Twist 416R Stainless Steel...
    Now: $189.00
    Was: $279.00
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    Now: $189.00
    Was: $279.00
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  • Out of stock
    ALWAYS ARMED 7.5" .300 BLACKOUT STAINLESS STEEL UPPER RECEIVER WITH SS AXE BRAKE- BLACK
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    ALWAYS ARMED 7.5" .300 BLACKOUT STAINLESS STEEL UPPER RECEIVER WITH SS AXE BRAKE- BLACK

    $329.00
    ALWAYS ARMED 7.5" .300 BLACKOUT STAINLESS STEEL UPPER RECEIVER WITH SS AXE BRAKE- BLACK Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist  7.5" 1:8 Twist 416R...
    $329.00
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    $329.00
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  • Out of stock
    Always Armed 7.5 inch 300 Blackout BX Series upper receiver in hard coat black anodized finish with 7 inch M-LOK handguard and 1:8 twist nitride barrel
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    ALWAYS ARMED 7.5" 300 BLACKOUT BX SERIES UPPER RECEIVER - BLACK ANODIZED

    Now: $189.00
    Was: $289.00
    Build a highly maneuverable, ultra-compact firearm with the Always Armed 7.5" 300 Blackout BX Series Upper Receiver. Precision-engineered and 100% Made in the USA, this complete upper assembly...
    Now: $189.00
    Was: $289.00
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    Now: $189.00
    Was: $289.00
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    Out of stock
  • Out of stock
    A product shot of the Always Armed 7.5" 300 Blackout TR Series Upper Receiver. The matte black hard-coat anodized upper showcases a 7" TR series free-float M-LOK handguard over a 7.5" black nitride barrel with an A2 flash hider, highlighting the assembled ejection port cover and forward assist on the forged receiver. A product shot of the Always Armed 7.5" 300 Blackout TR Series Upper Receiver. The matte black hard-coat anodized upper showcases a 7" TR series free-float M-LOK handguard over a 7.5" black nitride barrel with an A2 flash hider, highlighting the assembled ejection port cover and forward assist on the forged receiver.
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    ALWAYS ARMED 7.5" 300 BLACKOUT TR SERIES UPPER RECEIVER - BLACK ANODIZED

    Now: $189.00
    Was: $289.00
    ALWAYS ARMED 7.5" 300 BLACKOUT TR SERIES UPPER RECEIVER - BLACK ANODIZED Upgrade your next build with the Always Armed 7.5" 300 Blackout TR Series Upper Receiver. Precision-machined in the USA, this...
    Now: $189.00
    Was: $289.00
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    Now: $189.00
    Was: $289.00
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  • Out of stock
    Always Armed 7.5" 300 Blackout TR Series Upper Receiver in Magpul FDE Cerakote. Features a matching FDE-coated 7075-T6 upper receiver and 7" TR series M-LOK handguard surrounding a 7.5" black nitride barrel capped with an A2 flash hider. ALWAYS ARMED 7.5" 300 BLACKOUT TR SERIES UPPER RECEIVER - MAGPUL FDE
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    ALWAYS ARMED 7.5" 300 BLACKOUT TR SERIES UPPER RECEIVER - MAGPUL FDE

    Now: $209.00
    Was: $309.00
    ALWAYS ARMED 7.5" 300 BLACKOUT TR SERIES UPPER RECEIVER - MAGPUL FDE Upgrade your AR pistol or SBR build with the Always Armed 7.5" 300 Blackout TR Series Upper Receiver in Magpul Flat Dark Earth...
    Now: $209.00
    Was: $309.00
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    Now: $209.00
    Was: $309.00
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  • ALWAYS ARMED 7.5" 300 BLACKOUT UPPER RECEIVER - SIG PINK ALWAYS ARMED 7.5" 300 BLACKOUT UPPER RECEIVER - SIG PINK
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    ALWAYS ARMED 7.5" 300 BLACKOUT UPPER RECEIVER - SIG PINK

    Now: $209.00
    Was: $309.00
    Always Armed 7.5" 300 Blackout Upper Receiver - Sig Pink 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 Finish...
    Now: $209.00
    Was: $309.00
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    Now: $209.00
    Was: $309.00
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  • ALWAYS ARMED 7.5" 300 BLACKOUT UPPER RECEIVER - TITANIUM ALWAYS ARMED 7.5" 300 BLACKOUT UPPER RECEIVER - TITANIUM
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    ALWAYS ARMED 7.5" 300 BLACKOUT UPPER RECEIVER - TITANIUM

    Now: $209.00
    Was: $309.00
    Always Armed 7.5" 300 Blackout Upper Receiver - Titanium 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: $209.00
    Was: $309.00
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    Now: $209.00
    Was: $309.00
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