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Spike's Tactical 16" Barrel M4 LE 5.56 NATO

Barrel Steel is Certified MIL-B-11595E Chromoly Vanadium Alloy and Magnetic Particle Inspected they are also stress relieved.


  • Mil-Spec M4 Barrel Extension with MIL-STD-171 Phosphate Finish
  • MIL-STD-171 Hard Chrome Chamber
  • 1/7 Twist Rate
  • MIL-STD-171 Hard Chrome Bore
  • 5.56mm Nato chamber
  • All Chambers are Individually Checked for Head Spacing Before and After Plating
  • All Barrels are Individually High Pressure Tested (HPT) and then Individually Magnetic Particle Inspected (MPI)
  • MIL-STD-171 Phosphate Finish on the Barrel Exterior
  • 1/2x28 Thread Pitch
  • Threads are Cut Concentric to the Bore
  • Uses 0.750" Gas Block
  • Weight is 28.0oz
  • Spike's Lifetime Warranty

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