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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Out of stockOn Sale
ALWAYS ARMED 10.5" 300 BLACKOUT UPPER RECEIVER WITH STAINLESS STEEL BARREL
Sale: $229.00MSRP: $309.00ALWAYS ARMED 10.5" 300 BLACKOUT UPPER RECEIVER WITH STAINLESS STEEL BARREL 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 Upper Receiver Chambered in .300...Sale: $229.00MSRP: $309.00 -
On Sale
Grid Defense 7.5" .300 Blackout Upper Receiver - FDE
Sale: $299.00MSRP: $379.00Grid Defense 7.5" .300 Blackout Upper Receiver Finished in Magpul Flat Dark Earth 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
Ghost Elite 7.5" .300 Blackout Upper - FDE
Sale: $259.00MSRP: $329.00Ghost Elite 7.5" .300 Upper - FDE A2 Flash Hider Chambered in .300 Blackout 7.5" 1:8 Twist 4150 Light HBar Barrel Black Nitride Pistol Length Gas System Ghost Firearms 7" M-Lok Free Float Hand Guard Ghost Mil-Spec 7075 T6...Sale: $259.00MSRP: $329.00 -
On Sale
ALWAYS ARMED TR SERIES 10.5" .300 BLACKOUT UPPER RECEIVER - FDE
Sale: $209.00MSRP: $299.00ALWAYS ARMED TR SERIES 10.5" .300 BLACKOUT UPPER RECEIVER - FDE Made in the USA Magpul FDE Cerakote Finish Mil-Spec AR15 7075 T6 Upper Receiver with Dust Cover and Forward Assist 9.25" Free Float M-LOK TR Series Rail 10.5" 1:8 Twist Barrel with...Sale: $209.00MSRP: $299.00 -
On Sale
ALWAYS ARMED 16" 300 BLACKOUT RIFLE KIT - MAGPUL FDE
Sale: $379.00MSRP: $529.00Always Armed 16" 300 Blackout Rifle Kit - FDE Made in the USA Rifle Butt Stock Carbine Buffer Tube Assembly Mil-Spec Lower Parts Kit Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 16" 1:8 Twist 4150 Barrel with Black Nitride...Sale: $379.00MSRP: $529.00 -
On Sale
ALWAYS ARMED 7.5" .300 BLACKOUT STAINLESS STEEL UPPER RECEIVER - BLACK
Sale: $179.00MSRP: $279.00ALWAYS 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 Barrel Chambered in .300 Blackout Pistol...Sale: $179.00MSRP: $279.00 -
On Sale
Ghost Vital 16" Upper .300 Blackout With 11" Rail - Black
Sale: $239.00MSRP: $299.00Ghost Vital 16" Upper .300 Blackout With 11" Rail - Black Chambered in .300 Blackout (7.62x35) 16" 1:8 Twist 4150 Light HBar Barrel Black Nitride Pistol Length Gas System Ghost Firearms 11" M-Lok Free Float Hand Guard Ghost Mil-Spec...Sale: $239.00MSRP: $299.00 -
On Sale
ALWAYS ARMED 7.5" 300 BLACKOUT TR SERIES UPPER RECEIVER - MAGPUL FDE
Sale: $209.00MSRP: $299.00Always Armed 7.5" 300 Blackout TR Series Upper Receiver - Magpul FDE 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...Sale: $209.00MSRP: $299.00 -
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 System Ghost...$379.00 -
On Sale
Ghost Elite 16" Upper .300 Blackout Don't Tread On Me Dust Cover Charging Handle Combo - FDE
Sale: $319.00MSRP: $369.00Ghost Firearms Elite 16" Upper .300 Blackout - FDE Chambered in .300 Blackout (7.62x35) A2 Flash Hider 16" 1:8 Twist 4150 Light HBar Barrel Black Nitride Pistol Length Gas System Ghost Firearms 14" M-Lok Free...Sale: $319.00MSRP: $369.00 -
ALWAYS ARMED 10.5" .300 BLACKOUT TR SERIES WITH TRINITY FORCE SIGHTS PISTOL KIT - BLACK ANODIZED
$489.00Always Armed 10.5" .300 Blackout TRX Series with Trinity Force Sights Pistol Kit - Black Anodized 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...$489.00 -
On Sale
Ghost Firearms 7.5" .300 Blackout Flash Can Upper Receiver Pistol Kit - FDE
Sale: $449.00MSRP: $599.00Ghost Firearms 7.5" Flash Can Upper Receiver Pistol Build Kit Finished in Magpul Flat Dark Earth 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...Sale: $449.00MSRP: $599.00 -
On Sale
ALWAYS ARMED 7.5" 300 BLACKOUT TR SERIES UPPER RECEIVER - BLACK ANODIZED
Sale: $189.00MSRP: $269.00ALWAYS ARMED 7.5" 300 BLACKOUT TR SERIES UPPER RECEIVER - BLACK ANODIZED 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...Sale: $189.00MSRP: $269.00 -
On Sale
Ghost Vital 16" .300 Blackout With Black Upper and 14" FDE Rail
Sale: $254.00MSRP: $329.00Ghost Vital 16" Black Upper .300 Blackout With 14" FDE Rail - Black Chambered in .300 Blackout 16" 1:8 Twist 4150 Barrel Black Nitride Carbine Length Gas System Ghost Firearms 14" M-Lok Free Float Hand Guard Finished in Flat Dark...Sale: $254.00MSRP: $329.00 -
On Sale
Grid Defense 7.5" .300 Blackout Upper Receiver - Black
Sale: $299.00MSRP: $379.00Grid Defense 7.5" .300 Blackout Upper Receiver Hard Coat Black Anodized Finish 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 Hider...Sale: $299.00MSRP: $379.00 -
On Sale
ALWAYS ARMED 10.5" 300 BLACKOUT PISTOL KIT - MAGPUL FDE
Sale: $359.00MSRP: $499.00Always Armed 10.5" 300 Blackout Pistol Kit - Magpul FDE Made in the USA Mil-Spec Lower Parts Kit 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...Sale: $359.00MSRP: $499.00 -
On Sale
ALWAYS ARMED 7.5" 300 BLACKOUT PISTOL KIT - MAGPUL FDE
Sale: $439.00MSRP: $499.00Always Armed 7.5" 300 Blackout Pistol Kit - Magpul FDE Made in the USA Mil-Spec Lower Parts Kit 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...Sale: $439.00MSRP: $499.00 -
Out of stock
ALWAYS ARMED 7.5" .300 BLACKOUT STAINLESS STEEL UPPER RECEIVER WITH SS AXE BRAKE- BLACK
$329.00ALWAYS 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 Stainless Steel Barrel Chambered in .300 Blackout Pistol...$329.00 -
On Sale
ALWAYS ARMED OCTO SERIES 16" .300 BLACKOUT RIFLE KIT - BLACK
Sale: $349.00MSRP: $469.00ALWAYS ARMED OCTO SERIES 16" .300 BLACKOUT RIFLE KIT 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: $349.00MSRP: $469.00 -
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