The Faxon Duty Series, Gunner Big Bore Contour Barrel for the AR-15 450 Bushmaster is manufactured 100% in-house from cradle-to-grave. The barrel is manufactured from certified 4150 mil-spec bar stock steel with nitride coating for added durability and longevity. Each barrel is magnetic particle inspected (MPI) to ensure perfect surfaces and sub-surfaces as well as air-gauge tested to ensure superior accuracy. The Faxon Gunner Big Bore is button rifled and includes the Big Bore barrel extension to guarantee control of this giant round!
Features
- 4150 CMV Construction
- Salt Bath Nitride Finish
- Big Bore Barrel Extension
- Polished 11-degree Target Crown
- Particle Inspected
- Button Rifled
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