Midwest Industries, Bolt Carrier Group, Black Nitride

BLACK NITRIDE BOLT CARRIER GROUP

• Assembled Bolt Carrier Group for AR-15/M16
• 8620 M16 style carrier
• • Black Nitride finish
  • Properly heat treated
  • Final grind before plating
  · 9310 Steel 5.56/.223 bolt
  · Heat treated
  · Shot peened
  · Precision ground for perfect dimensions
  · Black Nitride finish
  · MPI - Magnetic Particle Inspected
  · 4140 Gas Key
  • Black Nitride finish
  • Properly torqued with Grade 8 fasteners
  • Properly staked to ensure reliability
  · 4140 Cam Pin
  • Heat Treated
  • Black Nitride finish
  · Machined from solid 4140 bar stock, heat treated and shot peened
  · Phosphate coated for reliable extraction
  · Extractor insert included
  · O-Ring included
  · Firing pin precision machined from 17-4 H-900 Stainless Steel
  · 100% USA Made