AR15 - 300 Blackout
Our 300 Blackout barrels are crafted from top-quality materials, and our upper receivers and rifle kits are built to the highest standards. Our selection of parts and accessories includes everything from handguards and muzzle devices to gas blocks and bolt carrier groups. We also offer a wide range of customization options to suit your unique needs and preferences.
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On Sale
ALWAYS ARMED JESTER 16" .300 BLACKOUT RIFLE KIT - FDE
Sale: $379.00MSRP: $529.00Always Armed Jester 16" .300 Blackout Rifle Kit - FDE 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 System .750...Sale: $379.00MSRP: $529.00 -
On Sale
Grid Defense 16" .300 Blackout Quad Rail Upper Receiver - Blue Titanium
Sale: $329.00MSRP: $399.00Grid Defense 16" .300 Blackout Quad Rail Upper Receiver - Blue Titanium Blue Titanium Cerakote Finish Chambered in .300 Blackout 14" M-Lok Quad Rail 16" 1:8 4150 Barrel - Black Nitride Pistol Length Gas System A2 Flash Hider Mil-Spec 7075-T6 Upper...Sale: $329.00MSRP: $399.00 -
On Sale
Ghost Firearms 7.5" .300 Blackout Flash Can Upper Receiver Pistol Kit - Tactical Grape
Sale: $449.00MSRP: $599.00Ghost Firearms 7.5" Flash Can Upper Receiver Pistol Build Kit Finished in Purple Cerakote Milspec 7075-T6 Upper Receiver 7.5" 1:8 4150 Light HBar Barrel - Black Nitride Chambered in .300 Blackout (7.62x35) .750 Low Profile Gas Block Pistol Length Gas...Sale: $449.00MSRP: $599.00 -
Out of stockOn Sale
Grid Defense 7.5" .300 Blackout Upper Receiver - Pink Champagne
Sale: $299.00MSRP: $379.00Grid Defense 7.5" .300 Blackout Upper Receiver - Pink Champagne Finished in Pink Champagne Cerakote AR15 Skeletonized Upper Mil Spec 7075-T6 Upper Receiver 7.5" 1:8 Twist 4150 M4 Barrel - Black Nitride 7" Grid Defense Octagon M-Lok Rail Pistol Length...Sale: $299.00MSRP: $379.00 -
On Sale
Grid Defense Stainless Steel 7.5" .300 Blackout Upper Receiver - FDE
Sale: $299.00MSRP: $399.00Grid Defense Stainless Steel 7.5" .300 Blackout Upper Receiver Magpul Flat Dark Earth Cerakote Finish Chambered in .300 Blackout (7.62x35) Stainless Steel A2 Flash Hider 7.5" 1:8 Twist 416R Stainless Steel Light HBar Barrel Pistol Length Gas...Sale: $299.00MSRP: $399.00 -
Out of stock
ALWAYS ARMED OCTO SERIES 7.5" .300 BLACKOUT FLASH CAN UPPER RECEIVER WITH STAINLESS STEEL BARREL - BLACK
$349.00ALWAYS ARMED OCTO SERIES 7.5" .300 BLACKOUT FLASH CAN UPPER RECEIVER Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 7.5" 1:8 Twist 416R Stainless Steel Barrel Chambered in .300 BLACKOUT Pistol Length Gas System ...$349.00 -
Out of stock
Ghost Vital 16" .300 Blackout Rifle Build Kit With Nickel Boron lower parts kit
$529.00Ghost Vital 16" .300 Blackout Rifle Build Kit With Nickel Boron LPK Ghost Firearms Vital 16" Upper Chambered in .300 Blackout (7.62x35) A2 Birdcage Flash Hider 300 Blackout Ghost Gun 16" 1:8 Twist 4150 Light HBar Barrel Black Nitride...$529.00 -
On Sale
Grid Defense 16" .300 Blackout Quad Rail Upper Receiver - Black
Sale: $329.00MSRP: $399.00Grid Defense 16" .300 Blackout Quad Rail Upper Receiver - Black Black Anodized Finish Chambered in .300 Blackout A2 Flash Hider 16" 1:8 Twist 4150 Barrel - Black Nitride Pistol Length Gas System Grid Defense 14" M-Lok Free Float Quad Rail Grid Defense...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 16" 300 Blackout Upper Receiver - Tactical Grape
Sale: $329.00MSRP: $399.00Grid Defense 16" 300 Blackout Upper Receiver - Tactical Grape Tactical Grape 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...Sale: $329.00MSRP: $399.00 -
Out of stockOn Sale
Grid Defense Stainless Steel 16" 300 Blackout Upper Receiver - Tungsten Gray
Sale: $329.00MSRP: $429.00Grid Defense Stainless Steel 16" 300 Blackout Upper Receiver - Tungsten Gray Tungsten Gray 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 System...Sale: $329.00MSRP: $429.00 -
On Sale
ALWAYS ARMED JESTER 16" .300 BLACKOUT RIFLE KIT - BURNT BRONZE
Sale: $379.00MSRP: $529.00Always Armed Jester 16" .300 Blackout Rifle Kit - Burnt Bronze 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: $379.00MSRP: $529.00 -
On Sale
Ghost Firearms 7.5" .300 Blackout with 7" M-Lok Pistol Kit - FDE
Sale: $439.00MSRP: $579.00Ghost Firearms 7.5".300 Pistol Kit - Flat Dark Earth Finished in Flat Dark Earth Cerakote Chambered in .300 Blackout (7.62x35mm) M16 Bolt Carrier Group Mil-spec Charging Handle A2 Flash Hider 5/8 by 24 7.5" 1:8 Twist 4150...Sale: $439.00MSRP: $579.00 -
Out of stockOn Sale
Grid Defense Stainless Steel 16" 300 Blackout Upper Receiver - Blue Titanium
Sale: $329.00MSRP: $429.00Grid Defense Stainless Steel 16" 300 Blackout Upper Receiver - Blue Titanium Blue Titanium 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 System...Sale: $329.00MSRP: $429.00 -
Out of stockOn Sale
Grid Defense Stainless Steel 16" 300 Blackout Upper Receiver - FDE
Sale: $329.00MSRP: $429.00Grid Defense Stainless Steel 16" 300 Blackout Upper Receiver - 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 System Grid...Sale: $329.00MSRP: $429.00 -
Out of stock
Ghost Fireams Elite Stainless Steel 16" Upper .300 Blackout - OD Green
$379.00Ghost Firearms Elite Stainless Steel 16".300 AAC Blackout Upper - OD Green The new .300 blackout upper receiver with A2 flash can. OD Green Cerakote Finish Chambered in .300 Blackout (7.62x35) Stainless Steel A2 Flash Hider 16" 1:8 Twist 416R Stainless...$379.00 -
Out of stockOn Sale
Grid Defense GX2 7.5" .300 Blackout Flash Can Upper Receiver - FDE
Sale: $329.00MSRP: $399.00Grid Defense GX2 7.5" .300 Blackout Flash Can Upper Mil-Spec 7075-T6 Upper Receiver 7.5" 1:8 Twist 4150 M4 Barrel - Black Nitride Chambered in .300 Blackout 9" Grid Defense GX2 Octagon M-Lok Rail Dimpled Flash Can Pistol Length Gas System Made in...Sale: $329.00MSRP: $399.00 -
Out of stockOn Sale
Grid Defense Stainless Steel 16" 300 Blackout Upper Receiver - Burnt Bronze
Sale: $329.00MSRP: $429.00Grid Defense Stainless Steel 16" 300 Blackout Upper Receiver - Burnt Bronze Burnt Bronze 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 System...Sale: $329.00MSRP: $429.00 -
On Sale
Grid Defense Stainless Steel 7.5" .300 Blackout Upper Receiver - Blue Titanium
Sale: $299.00MSRP: $399.00Grid Defense Stainless Steel 7.5" .300 Blackout Upper Receiver Blue Titanium Cerakote Finish Chambered in .300 Blackout (7.62x35) Stainless Steel A2 Flash Hider 7.5" 1:8 Twist 416R Stainless Steel Light HBar Barrel Pistol Length Gas System Grid...Sale: $299.00MSRP: $399.00 -
On Sale
Grid Defense Stainless Steel 7.5" .300 Blackout Upper Receiver - OD Green
Sale: $299.00MSRP: $399.00Grid Defense Stainless Steel 7.5" .300 Blackout Upper Receiver Magpul Olive Drab Green Cerakote Finish Chambered in .300 Blackout (7.62x35) Stainless Steel A2 Flash Hider 7.5" 1:8 Twist 416R Stainless Steel Light HBar Barrel Pistol Length Gas System...Sale: $299.00MSRP: $399.00 -
Out of stock
ALWAYS ARMED 16" .300 BLACKOUT BX SERIES STAINLESS STEEL UPPER RECEIVER WITH AXE BRAKE - TITANIUM
$349.00ALWAYS ARMED 16" .300 BLACKOUT BX SERIES STAINLESS STEEL UPPER RECEIVER Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 16" 1:8 Twist 416R Stainless Steel Barrel Chambered in .300 Blackout Pistol Length Gas...$349.00