FAXON Firearms 300 AAC Blackout 1-8 Twist 7.5" Barrel

Faxon Firearms 300 Aac Blackout 1-8 Twist 7.5" Barrel - Barrel for AR-15 - view 1
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Faxon Firearms

Overview

The Faxon Firearms 300 AAC Blackout Barrel features a 9-inch pencil profile designed for the 300 Blackout caliber, making it an excellent choice for builds that prioritize lightweight and maneuverability. With a twist rate of 1:8, this barrel is optimized for stabilizing a variety of bullet weights, while the pistol-length gas system ensures reliable cycling and performance in compact setups. You’ll commonly find this barrel in pistol builds, where its balance of length and weight provides a streamlined shooting experience.

Specifications

MPN15A38P7NGQ
Barrel Length30
Thread Pitch5/8x24
Twist Rate1:8
Barrel ProfileM4
Gas Block Diameter.625
CoatingNitride
FinishBlack
Gas System LengthPistol
Caliber300 Blackout

Available Merchants(6)

Prices checked

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Palmetto State Armory logo
Palmetto State Armory
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In Stock
$135
Brownells logo
Brownells
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$143
Sportsmans Outdoor Superstore logo
Sportsmans Outdoor Superstore
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$148
Optics Planet logo
Optics Planet
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Out of Stock
$148
Primary Arms logo
Primary Arms
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$148
BattleHawk Armory logo
BattleHawk Armory
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$148

September 2026 on GunPartPicker

FAXON Firearms 300 AAC Blackout 1-8 Twist 7.5" Barrel ranked #41 of the 250 barrels builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #242 of the 821 barrels builders have added.

It was in stock most days in September 2026, and today 3 of the 6 retailers we track have it in stock. It dipped to $115.56 at Sportsmans Outdoor Superstore for a stretch in September 2026, well under its usual $142.60, so sales do come around. Buying today, the lowest price is $134.99 at Palmetto State Armory, above September's low of $115.56, so a better deal may come back.

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Frequently Built With

The part most often added in each category by the builds that include this one

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

89.1%
AR-1589.1%
AR-108.2%
AR-92.8%

Builds Featuring This Part

See all 2 →

Builds in the community that include the Faxon Firearms 300 Aac Blackout 1-8 Twist 7.5" Barrel

BuildPartsTotal
9" aero precision carbine build
9" aero precision carbine
15$1150.97
PSA 9" build build
PSA 9" build
20$1034.86

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