5.56 Carbine Barrel 1-7 Twist ER Shaw Chrome Moly Phosphate M4

  • ER Shaw Made Barrel
  • Chrome Moly
  • 1-7 Twist
  • Carbine gas
  • .750 gas block
  • Phosphated
  • 5.56, .223 calibers
  • 1/2×28 threads
  • M4 Feed Ramps
Weight 19 oz

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