M4 BARREL EXTENSION

December 2, 2019 AR-15 Parts

Barrel extensions play a central part in the construction of an AR-15 barrel.  Fully machined from high-grade aerospace quality steel allow, these components are designed for precise fit, maximum strength, and consistent durability.

  • Extension machined from 8620 per AMS 6274 aerospace quality steel alloy
  • Heat treated – carburized 
  • CNC threaded and hard turned to precision
  • All material, components and packaging made in the USA
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