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M16 Barrel 20" M16A1 5.56x45mm pencil profile chrome-lined Green Mountain

High quality US made M16A1 barrel, made by Green Mountain.

  • Caliber- 5.56x45mm
  • Twist Rate- 1:12
  • Length- 20"
  • Profile- M16A1 Pencil
  • Finish- Chrome Line Phosphate
  • Gas System Length- Rifle Gas Block OD- .625+-(.001)
  • Steel Type- 41V50
  • Thread Pitch- 1/2x28
  • Weight- 1.70lbs

Stamped: G 5.56 NATO 1/2

gas port hole has been drilled


We are an authorized GMB dealer, 90 day warranty.
*US sales only*

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