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Faxon Firearms
Overview
The Faxon Firearms 7.5" 300 BLK Barrel is designed specifically for the 300 Blackout caliber, providing a compact option for builders looking to create a lightweight and maneuverable setup. With its pistol-length gas system, this barrel ensures reliable cycling even with subsonic ammunition, making it ideal for suppressed builds. This barrel commonly appears in short-barreled rifles and personal defense weapons, where compactness and performance are critical.
Specifications
Available Merchants
Price Alert
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Build history on GunPartPicker
Builders have been adding the FAXON Firearms 7.5" 300 Black Barrel to their builds on GunPartPicker since March 2026. All time, it ranks #385 of the 831 barrels builders have added.
Updated · from real builds on GunPartPicker
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We ranked every barrel by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Barrel Length & Brand Report →Check it against the live catalog:
Frequently Built With
The part most often added in each category by the builds that include this one
Wilson Combat AR-15 Billet Upper Receiver
AR-15 Charging Handle
Hogue Midlength Free Float Forend w/ Overmold Gripping Area - Black
Foxtrot Mike Products MIKE-15 Complete Ambidextrous Billet Lower Receiver With Picatinny Rail
Strike Industries FSA Single Folding Stock Black - Compact and Reliable Folding Stock for Tactical Mobility - SI-FSA-S-STOCK
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
Builds Featuring This Part
See all 1 →Builds in the community that include the Faxon Firearms 7.5" 300 BLK Barrel
| Build | Parts | Total |
|---|---|---|
 | 7 | $642.90 |
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