Faxon Firearms152743723
Faxon Firearms 10B863P12Ngmhl5Rnp3 8.6 Blackout 12" 416R S/S Button Rifled$285.00
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Availability: In Stock
Current Stock: Out of stock
The Faxon Firearms 300 Blackout 7.50" barrel is a 416R stainless steel replacement barrel engineered for shooters running short-range, subsonic, or specialized ammunition loads. At 7.5 inches, this barrel is built for compact AR platforms—think short-barreled rifles, pistol-caliber uppers, or tight-quarters builds where velocity trade-offs are acceptable and maneuverability matters more than distant precision. The button-rifled bore and stainless construction give you a durable, corrosion-resistant shooter that handles the kinds of loads and environments that turn lesser barrels into range queens.
300 Blackout has earned its place as the go-to cartridge for subsonic work, suppressed fire, and close-range hunting where noise signature is a factor. Faxon's 416R stainless is a proven material in the AR space—strong enough for the pressures involved, resistant to fouling, and easy to keep clean after extended shooting. Whether you're building a dedicated subsonic rifle, upgrading an existing upper, or experimenting with a new caliber on a platform you already own, this is a no-nonsense barrel from a maker known for quality control and attention to manufacturing detail.
A 7.5-inch .300 Blackout barrel is a specialized tool, not a general-purpose hunting or target rifle component. Subsonic ammunition performance, powder selection, and suppressor pairing all factor into real-world results. This is a barrel for shooters who know what they're doing with the cartridge and understand the ballistic trade-offs of short barrels and slower velocities. If you're building or upgrading, make sure your upper receiver, bolt, and ammunition plan align with Blackout's typical use cases.
| Brand | Faxon Firearms |
| Caliber | .300 Blackout |
| Barrel Length | 7.50" |
| Material | 416R Stainless Steel |
| Rifling | Button Rifled |
| Model Number | 15B35P7NGMHL5RNP3 |
This is a 300 Blackout barrel with a standard AR threading and profile. Confirm compatibility with your upper receiver's chamber specifications and bore diameter before purchase—barrel fitment depends on your platform's receiver and bolt setup.
300 Blackout is commonly used for short-range hunting, particularly with subsonic loads or in suppressed applications. The 7.5-inch length is compact and maneuverable. Check your local hunting regulations regarding barrel length, caliber, and ammunition type for your intended game and region.
300 Blackout is designed to function across a wide range of ammunition types, including subsonic loads. Verify that your chosen ammunition is loaded to pressures safe for your specific barrel and upper assembly, and test reliability with your bolt and magazines.
This is the barrel only. You will need to source compatible gas block, tube, handguard, and other upper receiver components separately to complete your build.
SKU: 152747333 • Width: 3.1in • Height: 1.2in • Depth: 9in • Weight: 0.885oz
Availability: In Stock
Current Stock: Out of stock
The Faxon Firearms 300 Blackout 7.50" barrel is a 416R stainless steel replacement barrel engineered for shooters running short-range, subsonic, or specialized ammunition loads. At 7.5 inches, this barrel is built for compact AR platforms—think short-barreled rifles, pistol-caliber uppers, or tight-quarters builds where velocity trade-offs are acceptable and maneuverability matters more than distant precision. The button-rifled bore and stainless construction give you a durable, corrosion-resistant shooter that handles the kinds of loads and environments that turn lesser barrels into range queens.
300 Blackout has earned its place as the go-to cartridge for subsonic work, suppressed fire, and close-range hunting where noise signature is a factor. Faxon's 416R stainless is a proven material in the AR space—strong enough for the pressures involved, resistant to fouling, and easy to keep clean after extended shooting. Whether you're building a dedicated subsonic rifle, upgrading an existing upper, or experimenting with a new caliber on a platform you already own, this is a no-nonsense barrel from a maker known for quality control and attention to manufacturing detail.
A 7.5-inch .300 Blackout barrel is a specialized tool, not a general-purpose hunting or target rifle component. Subsonic ammunition performance, powder selection, and suppressor pairing all factor into real-world results. This is a barrel for shooters who know what they're doing with the cartridge and understand the ballistic trade-offs of short barrels and slower velocities. If you're building or upgrading, make sure your upper receiver, bolt, and ammunition plan align with Blackout's typical use cases.
| Brand | Faxon Firearms |
| Caliber | .300 Blackout |
| Barrel Length | 7.50" |
| Material | 416R Stainless Steel |
| Rifling | Button Rifled |
| Model Number | 15B35P7NGMHL5RNP3 |
This is a 300 Blackout barrel with a standard AR threading and profile. Confirm compatibility with your upper receiver's chamber specifications and bore diameter before purchase—barrel fitment depends on your platform's receiver and bolt setup.
300 Blackout is commonly used for short-range hunting, particularly with subsonic loads or in suppressed applications. The 7.5-inch length is compact and maneuverable. Check your local hunting regulations regarding barrel length, caliber, and ammunition type for your intended game and region.
300 Blackout is designed to function across a wide range of ammunition types, including subsonic loads. Verify that your chosen ammunition is loaded to pressures safe for your specific barrel and upper assembly, and test reliability with your bolt and magazines.
This is the barrel only. You will need to source compatible gas block, tube, handguard, and other upper receiver components separately to complete your build.
SKU: 152747333 • Width: 3.1in • Height: 1.2in • Depth: 9in • Weight: 0.885oz