Faxon 15A58M16NPQ Duty Series 5.56x45mm NATO 16 in Target Crown QPQ Black Nitride 4150 Steel Fits AR15/M16, Rifle Barrel

Faxon starts with 4150 Mil-Spec steel from there, each barrel goes through a battery of tests at each operation until finished in Nitride and final inspected. All barrels are individually checked for headspace by precision custom hardened gauges. Features button rifling; Pencil profile; mid barrel gas system; Nitride inside and outside finish; 1/2"-28 thread; 11 degree target crowned; 1.1" gas block journal and M4 barrel extension.

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Model:	Duty Series
Barrel Type:	Button Rifled
Thread Pattern:	1/2"x28
Finish:	QPQ Black Nitride
Caliber:	5.56x45mm NATO
Twist:	1:8"
Series:	Pencil
Weight:	1.20 lbs
Firearm Fit:	AR15/M16
Barrel Description:	Target Crown Steel
Length Range:	16"-20"
Length:	16"
Diameter:	.625"
Material:	4150 Steel