Faxon Firearms167527002
Faxon Firearms Duty 308 Win 13.9'' 1-10 Twist Big Gunner Contour Bbl Nitride$216.20
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Availability: In Stock
The Faxon Firearms Duty 450 Bushmaster 16" barrel with 1-16 twist is a purpose-built replacement barrel for AR-pattern rifles chambered in 450 Bushmaster. Built from certified 4150 CMV steel and finished in salt bath nitride, this barrel delivers the durability and accuracy shooters expect from a quality Faxon component—without the premium price tag. Whether you're building a dedicated hunting rifle, a subsonic suppressed setup, or upgrading an existing platform, this 16-inch Big Gunner profile barrel handles the job with confidence.
Faxon manufactures these barrels in-house and subjects each one to rigorous quality control. Every barrel is fully stress relieved, air-gauge tested, and inspected via magnetic particle analysis to catch defects before it ships. The 11-degree target crown promotes accuracy and protects the bore from impact during cleaning or handling. The carbine-length gas system and .875" gas block diameter integrate cleanly with standard AR components, while the 11/16x24 muzzle thread accepts common suppressors and muzzle devices.
At 1.72 pounds, the Big Gunner profile strikes a balance between stiffness and practical weight—heavier than a pencil barrel for better heat management and shot-to-shot consistency, but not so heavy that it unbalances a carbine. The 450 Bushmaster's combination of power and shootability has earned loyal followers among hunters and enthusiasts, and a quality barrel like this one unlocks the cartridge's full potential. If you're replacing a factory barrel or completing a build, this Faxon offering represents real value in a no-nonsense component.
| Caliber | 450 Bushmaster |
| Barrel Length | 16" |
| Barrel Profile | Big Gunner |
| Twist Rate | 1:16 |
| Material | 4150 CMV (Certified) |
| Rifling | Button Rifled |
| Finish (Bore & Exterior) | Salt Bath Nitride |
| Gas System | Carbine Length |
| Gas Block Diameter | .875" |
| Gas Block Journal Length | 1.1" |
| Barrel Extension | Big Bore |
| Muzzle Thread | 11/16x24 |
| Muzzle Crown | 11-degree Target Crown |
| Weight | 1.72 lbs |
| Quality Control | Stress Relieved, Air-Gauge Tested, Magnetic Particle Inspected, Headspace Checked |
Yes. This barrel is designed for AR-pattern rifles and features a standard 16" length and carbine-length gas system. The .875" gas block diameter and 1.1" journal length are compatible with conventional AR carbine components. You will need a 450 Bushmaster-appropriate bolt and bolt carrier to complete your build.
The barrel threads at 11/16x24, a common thread pitch for 450 Bushmaster. Most commercial suppressors and muzzle brakes in that caliber will accept this thread pattern, though always verify compatibility with your specific device before purchase.
Yes. The 450 Bushmaster is a popular hunting cartridge, and the 16-inch length with carbine-length gas system makes this barrel practical for a hunting rifle platform. The Big Gunner profile balances heat management and practical weight for field use.
Faxon manufactures and inspects these barrels in-house with air-gauge testing, stress relief, and an 11-degree target crown to promote accuracy. Real-world performance depends on ammunition quality, your firearm setup, and shooting technique, but this barrel is built to Faxon's standard for precision.
SKU: 167526994 • Weight: 1.72oz
Availability: In Stock
The Faxon Firearms Duty 450 Bushmaster 16" barrel with 1-16 twist is a purpose-built replacement barrel for AR-pattern rifles chambered in 450 Bushmaster. Built from certified 4150 CMV steel and finished in salt bath nitride, this barrel delivers the durability and accuracy shooters expect from a quality Faxon component—without the premium price tag. Whether you're building a dedicated hunting rifle, a subsonic suppressed setup, or upgrading an existing platform, this 16-inch Big Gunner profile barrel handles the job with confidence.
Faxon manufactures these barrels in-house and subjects each one to rigorous quality control. Every barrel is fully stress relieved, air-gauge tested, and inspected via magnetic particle analysis to catch defects before it ships. The 11-degree target crown promotes accuracy and protects the bore from impact during cleaning or handling. The carbine-length gas system and .875" gas block diameter integrate cleanly with standard AR components, while the 11/16x24 muzzle thread accepts common suppressors and muzzle devices.
At 1.72 pounds, the Big Gunner profile strikes a balance between stiffness and practical weight—heavier than a pencil barrel for better heat management and shot-to-shot consistency, but not so heavy that it unbalances a carbine. The 450 Bushmaster's combination of power and shootability has earned loyal followers among hunters and enthusiasts, and a quality barrel like this one unlocks the cartridge's full potential. If you're replacing a factory barrel or completing a build, this Faxon offering represents real value in a no-nonsense component.
| Caliber | 450 Bushmaster |
| Barrel Length | 16" |
| Barrel Profile | Big Gunner |
| Twist Rate | 1:16 |
| Material | 4150 CMV (Certified) |
| Rifling | Button Rifled |
| Finish (Bore & Exterior) | Salt Bath Nitride |
| Gas System | Carbine Length |
| Gas Block Diameter | .875" |
| Gas Block Journal Length | 1.1" |
| Barrel Extension | Big Bore |
| Muzzle Thread | 11/16x24 |
| Muzzle Crown | 11-degree Target Crown |
| Weight | 1.72 lbs |
| Quality Control | Stress Relieved, Air-Gauge Tested, Magnetic Particle Inspected, Headspace Checked |
Yes. This barrel is designed for AR-pattern rifles and features a standard 16" length and carbine-length gas system. The .875" gas block diameter and 1.1" journal length are compatible with conventional AR carbine components. You will need a 450 Bushmaster-appropriate bolt and bolt carrier to complete your build.
The barrel threads at 11/16x24, a common thread pitch for 450 Bushmaster. Most commercial suppressors and muzzle brakes in that caliber will accept this thread pattern, though always verify compatibility with your specific device before purchase.
Yes. The 450 Bushmaster is a popular hunting cartridge, and the 16-inch length with carbine-length gas system makes this barrel practical for a hunting rifle platform. The Big Gunner profile balances heat management and practical weight for field use.
Faxon manufactures and inspects these barrels in-house with air-gauge testing, stress relief, and an 11-degree target crown to promote accuracy. Real-world performance depends on ammunition quality, your firearm setup, and shooting technique, but this barrel is built to Faxon's standard for precision.
SKU: 167526994 • Weight: 1.72oz