300BLK Uppers

300BLK Uppers

300Blk uppers for AR15 in a wide range of Cerakote colors like FDE and OD Green are available from Always Armed. 300 BLK AR uppers are the top choice for your next hunting AR15. Using the standard 5.56 bolt carrier group, the .300 Blackout uppers are the go to pick when AR builders are looking for a new caliber in their AR-15 as they can be easily swapped out on existing AR lowers.

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  • Tactical Grape .300 Blackout Milspec AR15 Upper Receiver - Grid Defense Grid Defense 7.5" .300 Blackout Flash Can Upper Receiver in Purple cerakote
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    Grid Defense 7.5" .300 Blackout Flash Can Upper Receiver - Tactical Grape

    Now: $349.00
    Was: $399.00
    Grid Defense 7.5" .300 Blackout Pistol Upper Receiver - Tactical Grape Made in the USA Chambered in .300 Blackout (7.62x35) 7.5" 1:8 Twist 4150 Light HBar Barrel - Black Nitride Pistol Length Gas System .750 Low Profile Gas Block Dimpled Flash Can 9"...
    Now: $349.00
    Was: $399.00
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    Now: $349.00
    Was: $399.00
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  • Milspec AR 15 Pistol Upper Receiver with 12" MLOK Hand Guard with Dimpled Flash Can Tactical Grape Grid Defense 10.5" .300 Blackout Upper
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    Grid Defense 10.5" .300 Blackout Flash Can Upper Receiver - Tactical Grape

    Now: $329.00
    Was: $399.00
    Grid Defense 10.5" .300 Blackout Flash Can Upper Receiver - Purple Finished in Purple Cerakote Made in the USA 7075-T6 Mil-Spec .300 Blackout Upper Receiver 10.5" 1:8 Twist 4150 Light HBar Barrel - Black Nitride Chambered in .300 Blackout (7.62x35)...
    Now: $329.00
    Was: $399.00
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