JoeBobOutfitters 16" M4 5.56 4142 Chrome Moly Barrel- 1/9 Twist

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JoeBobOutfitters 16" M4 5.56 4142 Chrome Moly- 1/9 TwistJoeBobOutfitters' Chrome Moly barrels are made to our custom specifications right here in the USA!  These barrels are button rifled for excellent accuracy, with a Magnesium Phosphate Parkerize finish, and threaded 1/2x28" for all popular muzzle device compatibility and suppressor use. We tuned the gas port size to offer excellent reliability with 5.56 or .223 ammo without being over-gassed.Specs:*Barrel Length: 16″*Gas Block Seat: .750" with a 1.9" gas block seating to allow use of any standard or micro gas blocks*Rifling: 1 in 9 Twist Six Groove Button Rifled*Weight: 28.5oz*4142 Chrome Moly Steel (Non Chrome-Lined Barrel)*M4 Profile Barrel with Grenade-Launcher Cut*Feed Ramps: M4 Barrel Extension-Heat Treated & Polished 4142 Chrome Moly *Gas System: Carbine*Gas Port Size: .067"*Chamber: 5.56MM (Will reliably shoot 5.56 or 223 ammo)*Finish: Magnesium Phosphate Parkerized*Twist: 1:9 RH*Thread Pitch: 1⁄2×28"*Engraved "JBO 5.56 NATO 1:9" Proudly Made in the USA!Solid barstock for our barrels is received at our barrel manufacturer's shop and then the manufacturer does all cutting, profiling, and button rifling under 1 roof.  Bar stock is all from USA steel mills and is stress relieved and certified for hardness prior to barrel production.
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