HK416 A3 BARRELS

Designed to meet original A1/A3 specifications, these barrels deliver proper fitment, reliable cycling, and accurate HK-platform compatibility.

  • Correct A1/A3 barrel extension for proper interface
  • Standard 3mm index pin for alignment to A1/A3-spec uppers
  • Proper dual roll-pin slot as used on factory A1/A3 barrels
  • Excellent for HK clone builds and armorer-level retro spec projects
  • Built with tight manufacturing tolerances for dependable performance