300 Blackout Uppers
Our custom-built 300 Blackout uppers and accessories are designed to deliver superior performance and reliability. Our selection of 300 Blackout upper receivers and barrel assemblies are crafted from top-quality materials and built to the highest standards to ensure that you can build the ultimate firearm.
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On Sale
ALWAYS ARMED 10.5" 300 BLACKOUT UPPER RECEIVER - TITANIUM
SALE: $209.00MSRP: $299.00Always Armed 10.5" 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 4150 Barrel with Black Nitride Finish Chambered in .300 Blackout Pistol Length Gas...SALE: $209.00MSRP: $299.00 -
On Sale
Grid Defense 16" 300 Blackout Upper Receiver - FDE
SALE: $329.00MSRP: $399.00Grid Defense 16" 300 Blackout Upper Receiver - Flat Dark Earth FDE Cerakote Finish Chambered in .300 Blackout (7.62x35) A2 Flash Hider 16" 1:8 Twist 4150 Light HBar Barrel - Black Nitride Pistol Length Gas System Grid Defense 14" M-Lok Free Float...SALE: $329.00MSRP: $399.00 -
Out of stock
ALWAYS ARMED 16" .300 BLACKOUT UPPER RECEIVER WITH 15" M-LOK QUAD RAIL
$329.00ALWAYS 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 Gas System A2 Muzzle Device 1:8 Twist...$329.00 -
On Sale
ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - RIDGEWAY BLUE
SALE: $219.00MSRP: $319.00Always Armed 16" 300 Blackout Upper Receiver - Ridgeway Blue 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 Chambered in 300 Blackout Pistol Length Gas...SALE: $219.00MSRP: $319.00 -
On Sale
Grid Defense 10.5" .300 Blackout Upper Receiver - OD Green
SALE: $299.00MSRP: $379.00Grid Defense 10.5" .300 Blackout Upper Receiver - OD Green Finished in Magpul Olive Drab Green Cerakote Mil-Spec 7075-T6 Upper Receiver 10.5" 1:8 Twist 4150 Steel Barrel - Black Nitride Chambered in .300 Blackout (7.62x35) A2 Muzzle...SALE: $299.00MSRP: $379.00 -
On Sale
ALWAYS ARMED 16" .300 BLACKOUT BX SERIES UPPER RECEIVER - BLACK
SALE: $199.00MSRP: $299.00ALWAYS ARMED 16" .300 BLACKOUT BX SERIES 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 Finish Chambered in .300 Blackout Pistol Length...SALE: $199.00MSRP: $299.00 -
On Sale
ALWAYS ARMED 7.5" 300 BLACKOUT UPPER RECEIVER - RIDGEWAY BLUE
SALE: $209.00MSRP: $299.00Always Armed 7.5" 300 Blackout Upper Receiver - Ridgeway Blue 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 Chambered in .300 Blackout Pistol Length...SALE: $209.00MSRP: $299.00 -
On Sale
GRID DEFENSE 10.5" .300 BLACKOUT UPPER RECEIVER - BLACK
SALE: $299.00MSRP: $379.00Grid Defense 10.5" 300 Blackout Upper Receiver Hard Coat Black Anodized Chambered in 300 Blackout (7.62x35) 7075-T6 Milspec Upper Receiver 10.5" 1:8 Twist 4150 Steel Light HBar Barrel - Black Nitride .750 Low Profile Gas Block Pistol Length Gas...SALE: $299.00MSRP: $379.00 -
Out of stock
ALWAYS ARMED 10.5" 300 BLACKOUT UPPER RECEIVER WITH STAINLESS STEEL BARREL - BLEMISHED
$259.00ALWAYS ARMED 10.5" 300 BLACKOUT UPPER RECEIVER WITH STAINLESS STEEL BARREL - BLEMISHED Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 10.5" 1:8 Twist 416R Stainless Steel Barrel Blemished Upper...$259.00 -
On Sale
Grid Defense 7.5" .300 Blackout Upper Receiver - Burnt Bronze
SALE: $299.00MSRP: $379.00Grid Defense 7.5" .300 Blackout Upper Receiver Finished in Burnt Bronze Cerakote Mil Spec 7075-T6 Upper Receiver 7.5" 1:8 Twist 4150 Light HBAR Barrel - Black Nitride 7" Grid Defense Octagon M-Lok Rail Pistol Length Gas System A2 Flash...SALE: $299.00MSRP: $379.00 -
On Sale
Grid Defense 7.5" .300 Blackout Upper Receiver - OD Green
SALE: $299.00MSRP: $379.00Grid Defense 7.5" .300 Blackout Upper Receiver Finished in Magpul OD Green Cerakote Mil Spec 7075-T6 Upper Receiver 7.5" 1:8 Twist 4150 Light HBAR Barrel - Black Nitride 7" Grid Defense Octagon M-Lok Rail Pistol Length Gas System A2 Flash...SALE: $299.00MSRP: $379.00 -
On Sale
Grid Defense 16" 300 Blackout Quad Rail Upper Receiver - FDE
SALE: $349.00MSRP: $399.00Grid Defense 16" 300 Blackout Quad Rail Upper Receiver - FDE FDE Cerakote Finish Chambered in .300 Blackout (7.62x35) A2 Flash Hider 16" 1:8 Twist 4150 Light HBar Barrel - Black Nitride Pistol Length Gas System Grid Defense 14" M-Lok Free Float...SALE: $349.00MSRP: $399.00 -
On Sale
Grid Defense 10.5" .300 Blackout Upper Receiver - Burnt Bronze
SALE: $299.00MSRP: $379.00Grid Defense 10.5" .300 Blackout Upper Receiver - Burnt Bronze Finished in Burnt Bronze Cerakote Mil-Spec 7075-T6 Upper Receiver 10.5" 1:8 Twist 4150 Steel Barrel - Black Nitride Chambered in .300 Blackout (7.62x35) A2 Muzzle Device Pistol Length...SALE: $299.00MSRP: $379.00 -
On Sale
Grid Defense 16" 300 Blackout Upper Receiver - Tungsten Gray
SALE: $329.00MSRP: $399.00Grid Defense 16" 300 Blackout Upper Receiver - Tungsten Gray Tungsten Gray Cerakote Finish Chambered in .300 Blackout (7.62x35) A2 Flash Hider 16" 1:8 Twist 4150 Light HBar Barrel - Black Nitride Pistol Length Gas System Grid Defense 14" M-Lok...SALE: $329.00MSRP: $399.00 -
On Sale
ALWAYS ARMED 10.5" 300 BLACKOUT UPPER RECEIVER - SIG PINK
SALE: $209.00MSRP: $299.00Always Armed 10.5" 300 Blackout Upper Receiver - Sig Pink 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 Finish Chambered in .300 Blackout Pistol Length...SALE: $209.00MSRP: $299.00 -
On Sale
Grid Defense 10.5" .300 Blackout Upper Receiver - Tungsten Gray
SALE: $299.00MSRP: $379.00Grid Defense 10.5" .300 Blackout Upper Receiver - Tungsten Gray Finished in Tungsten Gray Cerakote Mil-Spec 7075-T6 Upper Receiver 10.5" 1:8 Twist 4150 Steel Barrel - Black Nitride Chambered in .300 Blackout (7.62x35) A2 Muzzle Device Pistol...SALE: $299.00MSRP: $379.00 -
Out of stockOn Sale
GHOST FIREARMS ELITE 16" UPPER 300 AAC BLACKOUT - TACTICAL GRAPE
SALE: $269.00MSRP: $349.00Ghost Firearms Elite 16" .300 AAC Upper -Tactical Grape Tactical Grape Cerakote Finished Chambered in 300 Blackout (7.62x35) A2 Flash Hider 16" 1:8 Twist 4150 Light HBar Barrel Black Nitride Pistol Length Gas System Ghost...SALE: $269.00MSRP: $349.00 -
On Sale
ALWAYS ARMED 10.5" 300 BLACKOUT UPPER RECEIVER - RIDGEWAY BLUE
SALE: $209.00MSRP: $299.00Always Armed 10.5" 300 Blackout Upper Receiver - Ridgeway Blue 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 Finish Chambered in .300 Blackout Pistol Length...SALE: $209.00MSRP: $299.00 -
On Sale
ALWAYS ARMED 16" 300 BLACKOUT UPPER RECEIVER - SIG PINK
SALE: $219.00MSRP: $319.00Always 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 Chambered in .300 Blackout Pistol Length Gas...SALE: $219.00MSRP: $319.00 -
Out of stock
Ghost Firearms Elite Stainless Steel 16" Upper .300 Blackout - Flat Dark Earth
$379.00Ghost Firearms Elite Stainless Steel 16".300 AAC Blackout Upper - Flat Dark Earth FDE Cerakote Finish Chambered in .300 Blackout (7.62x35) Stainless Steel A2 Flash Hider 16" 1:8 Twist 416R Stainless Steel Light HBar Barrel Pistol Length Gas...$379.00