Ballistic 5.56x45mm Barrel, 12.5" Barrel, Black, For AR-15

This 5.56 chambered 12.5" Government Profile Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.Specs- 750" Gas block journal, gas system length- carbine and a Government profile. All NFA/ATF Rules Apply-You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is Prohibited, except when installed on a Pistol configuration firearm.

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• Caliber or Gauge : 5.56x45mm
• Length : 12.5"
• Model : Modern Series
• Twist : 1:7"
• Sights : None
• Finish : QPQ Corrosion Resistant
• Type : 12.5" Barrel