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Armory Dynamics 12.5 MT 4140 CM SBN 5.56mm Barrel Carbine Gas

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Your Price: $132.99
Out of Stock.
Part Number:AD-B556MT12SBN17

Choose Options

Gas Block and Gas Tube Options
Armory Dynamics Low Profile Gas Block [+$22.99]
Armory Dynamics Carbine Length Gas Tube 304 Stainless 9-3/4 Inch [+$11.99]
Armory Dynamics 5.56 4140 Chrome Moly Salt Bath Nitride Medium Taper profile barrel that is already headspaced.

Polished Chamber

For Pistol or NFA builds.

  • Length: 12.5 Inch
  • Profile: Medium Taper
  • Material: 4140 Chrome Moly
  • Coating: Salt Bath Nitride (Inside & Out)
  • Properly Torqued Barrel Extension
  • Headspaced
  • Twist: 1:7
  • Caliber: 5.56 x45
  • Gas Length: Carbine
  • Gas Journal: .750 inch
  • Thread: 1/2x28
  • Made In USA

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