300 Blackout Build Kits
We offer a range of meticulously crafted kits designed to enhance your shooting experience. From avid hunters to tactical enthusiasts, our 300 Blackout Kits provide exceptional versatility and performance, allowing you to optimize your rifle for a variety of applications. Explore our carefully curated selection and discover the power, precision, and reliability that make Grid Defense the preferred choice for shooters seeking the ultimate edge.
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Out of stockOn Sale
ALWAYS ARMED 10.5" .300 BLACKOUT BR SERIES PISTOL KIT
Sale: $319.00MSRP: $509.00Always Armed 10.5" .300 Blackout BR Series Pistol Kit 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...Sale: $319.00MSRP: $509.00 -
On Sale
ALWAYS ARMED 10.5" .300 BLACKOUT GEN 1 PISTOL KIT
$319.00 - $339.00Always Armed 10.5" .300 Blackout Gen 1 Pistol Kit 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...$319.00 - $339.00 -
Out of stockOn Sale
ALWAYS ARMED 10.5" .300 BLACKOUT OCTO SERIES PISTOL KIT
$169.00 - $189.00Always Armed 10.5" .300 Blackout Octo Series Pistol Kit 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...$169.00 - $189.00 -
On Sale
ALWAYS ARMED 10.5" .300 BLACKOUT TR SERIES PISTOL KIT
$319.00 - $339.00Always Armed 10.5" .300 Blackout TR Series Pistol Kit 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...$319.00 - $339.00 -
On Sale
ALWAYS ARMED 16" .300 BLACKOUT BR SERIES RIFLE KIT
$329.00 - $349.00Always Armed 16" .300 Blackout BR Series 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...$329.00 - $349.00 -
On Sale
ALWAYS ARMED 16" .300 BLACKOUT GEN 1 RIFLE KIT
$329.00 - $349.00Always Armed 16" .300 Blackout GEN 1 Rifle Kit Upper Specifications Mil-Spec Upper Receiver Machined from 7075-T6 Forging Mil-Spec dust cover and forward assist Made in the USA 14" Free Float Gen 1...$329.00 - $349.00 -
On Sale
ALWAYS ARMED 16" .300 BLACKOUT OCTO SERIES RIFLE KIT
$329.00 - $349.00Always Armed 16" .300 Blackout Octo Series 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...$329.00 - $349.00 -
On Sale
ALWAYS ARMED 16" .300 BLACKOUT TR SERIES RIFLE KIT
$329.00 - $349.00Always Armed 16" .300 Blackout TR Series 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...$329.00 - $349.00 -
On Sale
ALWAYS ARMED 7.5" .300 BLACKOUT BR SERIES PISTOL KIT
Sale: $319.00MSRP: $509.00Always Armed 7.5" .300 Blackout BR Series Pistol Kit 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...Sale: $319.00MSRP: $509.00 -
On Sale
ALWAYS ARMED 7.5" .300 BLACKOUT GEN 1 PISTOL KIT
$319.00 - $339.00Always Armed 7.5" .300 Blackout Gen 1 Pistol Kit 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...$319.00 - $339.00 -
On Sale
ALWAYS ARMED 7.5" .300 BLACKOUT OCTO SERIES PISTOL KIT
$319.00 - $339.00Always Armed 7.5" .300 Blackout Octo Series Pistol Kit 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...$319.00 - $339.00 -
On Sale
Ghost Fireams 16" 300 AAC Blackout with 14" M-Lok Rifle Kit - Zombie Green
Sale: $449.00MSRP: $599.00Ghost Firearms 16".300 AAC Rifle Kit - Zombie Green Zombie Green Cerakote Finish M16 Bolt Carrier Group Chambered in .300 Blackout Mil-spec Charging Handle A2 Flash HiderSale: $449.00MSRP: $599.00