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BSF Barrels AR-15 .300 AAC Blackout Threaded AR Barrel 5/8x24 1-8 Pistol 12in .875 Strait Black/Stainless

BSF Barrels AR-15 .300 AAC Blackout Threaded AR Barrel 5/8x24 1-8 Pistol 12in .875 Strait Black/Stainless

BSF Barrels · Barrels

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Best price

$692.55at OpticsPlanet

Out of stock Sale checked Oct 22, 2026

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Where to buy

StorePriceAvailabilityBuyAdd to build
OpticsPlanet $692.55Salechecked Oct 22, 2026 Out of stock Buy at OpticsPlanet

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Price history

Dashed line = out of stock. Tracking since Oct 17, 2026.

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Since Oct 17, 2026.

About this part

The BSF Barrels AR-15 .300 AAC Blackout Threaded AR Barrel 5/8x24 1-8 Pistol 12in .875 Strait Black/Stainless is a 12" 300 Blackout barrel from BSF Barrels. One store lists it, OpticsPlanet at $692.55.

Fits and works with

Caliber
300 Blackout · Shop matching ammo
Bolt
Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
Gas block
0.875" diameter · Gas blocks
Muzzle thread
5/8x24 · Muzzle devices
Barrel length
12" · Handguards

Specifications

Manufacturer
BSF Barrels
Color
Black
Platform
AR-15
Caliber
300 Blackout
Barrel length
12"
Thread pattern
5/8 x 24

From the manufacturer

BSF Barrels AR-15 .300 AAC Blackout Threaded AR Barrel 5/8x24 1-8 Pistol 12in .875 Strait Black/Stainless. They use this jacketing method rather than wrapping the barrel in carbon fiber because this method of wrapping has been proven to trap heat and cause delamination. The carbon fiber they use is specially designed to move at the same expansion rate as 416R stainless steel. They machine slots into the carbon fiber allowing air to move around the barrel and vent heat quicker without any delamination issues. Using the Carbon Fiber this way keeps the rifling straighter the warmer the barrel gets because it's under tension. This allows they to maintain superior stiffness and strength while keeping the barrel extremely lightweight. Specifications for BSF Barrels AR-15 .300 AAC Blackout Threaded AR Barrel: Manufacturer: BSF Barrels Finish: Carbon Fiber Fabric/Material: Carbon Fiber Caliber: .300 AAC Blackout Barrel Profile: Contour Gas System Length: Pistol Length Gas Block Journal Size-Diameter: .875 in Barrel Material: 416R Stainless Steel Flutes: No Gun Make: AR Platform Gun Model: AR-15 Firearms Threads Per Inch: 5/8x24 Country of Origin: USA Features of BSF Barrels AR-15 .300 AAC Blackout Carbon Fiber Barrel 6 Groove Button Rifling 11deg Target Crown Chambered in .300 AAC Blackout Package Contents: BSF Barrels AR-15 .300 AAC Blackout Threaded AR Barrel What firearm models does the manufacturer say BSF Barrels AR-15 .300 AAC Blackout Threaded AR Barrel is compatible with? The manufacturer suggests that BSF Barrels AR-15 .300 AAC Blackout Threaded AR Barrel is compatible with AR-15BSF Barrels SF3IYT0098: AR-15 .300 AAC Blackout Threaded AR Barrel 5/8x24 1-8 Pistol 12in .875 Strait Black/Stainless

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$692.55 at OpticsPlanet
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