Faxon Firearms Duty Series 16 Inch 450 Bushmaster Carbine Length 4150 Nitride AR-15 Barrel

Item Number: 15A45016C16NGQ
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Condition: New

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Vance Outdoors Columbus

3723 Cleveland Ave.
Columbus, OH 43224

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Product Description

Faxon Firearms 16" Gunner Big Bore .450 Bushmaster barrel. Manufactured 100% in-house from certified 4150 Chrome Moly Vanadium (CMV) steel, fully stress relieved, air-gauge tested, salt-bath nitride finished inside and out, and finished with a polished 11° target crown. The Gunner Big Bore profile blends durability and maneuverability to move balance rearward for reduced shooter fatigue—ideal for heavy-caliber AR builds and hunting applications. Each barrel is button-rifled, magnetic particle inspected, and individually headspace-checked with precision hardened gauges.

Features

Manufactured cradle-to-grave in-house for strict quality control
Fully stress relieved and air-gauge tested for consistent accuracy
Button rifled and salt-bath nitride finished for durability and corrosion resistance
Gunner Big Bore profile for improved balance and reduced shooter fatigue
Individually headspace-checked with precision hardened gauges

Package Contents

Faxon Firearms 16" Gunner Big Bore .450 Bushmaster Barrel

Warning

WARNING: California's Proposition 65 — this product can expose you to chemicals known to the State of California to cause cancer or reproductive harm. Check local regulations before purchase.

Product Specifications

Manufacturer: Faxon Firearms
Caliber: .450 Bushmaster
Barrel Length: 16"
Barrel Material: 4150 Chrome Moly Vanadium (CMV)
Barrel Type: Button Rifled
Barrel Profile: Gunner Big Bore
Barrel Twist: 1:16
Gas System Length: Carbine
Gas Block Diameter (journal): 0.875"
Gas Block Journal Length: 1.1"
Muzzle Thread: 11/16" × 24 TPI
Barrel Extension: Big Bore barrel extension
Inside Finish: Salt Bath Nitride
Outside Finish: Salt Bath Nitride (black)
Weight: 1.72 lbs
Inspection: Magnetic Particle Inspected; individually headspace-checked
Muzzle: Polished 11° target crown
Compatibility: AR-15 platform (Big Bore builds)